Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Prospective, Open-Label, Multicenter Randomized Phase III Trial to Compare The Efficacy and Safety of A Combined Regimen of Obinutuzumab and Venetoclax Versus Obinutuzumab and Chlorambucil in Previously Untreated Patients With CLL and Coexisting Medical Conditions
Brief Summary: This open-label, multicenter, randomized Phase III study is designed to compare the efficacy and safety of a combined regimen of obinutuzumab and venetoclax versus obinutuzumab + chlorambucil in participants with chronic lymphocytic leukemia (CLL) and coexisting medical conditions. The time on study treatment was approximately one year and the follow-up period will be up to 9 years


Options:
A: Inclusion Criteria:

* Documented previously untreated CLL according to the International Workshop on Chronic Lymphocytic Leukemia (IWCLL) criteria
* CLL requiring treatment according to IWCLL criteria
* Total Cumulative Illness Rating Scale (CIRS score) greater than (\>) 6
* Adequate marrow function independent of growth factor or transfusion support within 2 weeks of screening as per protocol, unless cytopenia is due to marrow involvement of CLL
* Adequate liver function
* Life expectancy \> 6 months
* Agreement to use highly effective contraceptive methods per protocol

Exclusion Criteria:

* Transformation of CLL to aggressive Non-Hodgkin's lymphoma (Richter's transformation or pro-lymphocytic leukemia)
* Known central nervous system involvement
* Participants with a history of confirmed progressive multifocal leukoencephalopathy (PML)
* An individual organ/ system impairment score of 4 as assessed by the CIRS definition limiting the ability to receive the treatment regimen of this trial with the exception of eyes, ears, nose, throat organ system
* Participants with uncontrolled autoimmune hemolytic anemia or immune thrombocytopenia
* Inadequate renal function
* History of prior malignancy, except for conditions as listed in the protocol if participants have recovered from the acute side effects incurred as a result of previous therapy
* Use of investigational agents or concurrent anti-cancer treatment within the last 4 weeks of registration
* Participants with active bacterial, viral, or fungal infection requiring systemic treatment within the last two months prior to registration
* History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies or known sensitivity or allergy to murine products
* Hypersensitivity to chlorambucil, obinutuzumab, or venetoclax or to any of the excipients
* Pregnant women and nursing mothers
* Positive test results for chronic hepatitis B virus (HBV) infection (defined as positive hepatitis B surface antigen \[HBsAg\] serology) or positive test result for hepatitis C (hepatitis C virus \[HCV\] antibody serology testing)
* Participants with known infection with human immunodeficiency virus (HIV) or human T-cell leukemia virus-1 (HTLV-1)
* Requires the use of warfarin, marcumar, or phenprocoumon
* Received agents known to be strong and moderate Cytochrome P450 3A inhibitors or inducers within 7 days prior to the first dose of study drug
B: Inclusion Criteria:

* Adult participants who are: (a) greater than or equal to (\>=) 65 years old or, (b) 18 to 64 years old and have at least 1 of the following:

  1. Cumulative Illness Rating Scale (CIRS) score \> 6
  2. Creatinine clearance (CrCl) estimated less than (\<) 70 milliliter per minute (mL/min) using Cockcroft-Gault equation
* Diagnosis of chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) that meets International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria
* Measurable nodal disease (by computed tomography \[CT\]), defined as at least one lymph node \> 1.5 centimeter (cm) in longest diameter
* Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) Grade less than or equal to (\<=) 2
* Active CLL/SLL requiring treatment per the iwCLL criteria

Exclusion Criteria:

* Prior anti-leukemic therapy for CLL or SLL
* Presence of deletion of the short arm of chromosome 17 (del17p) or known TP53 mutation detected at a threshold of \>10 percent (%) variable allele frequency (VAF)
* Major surgery within 4 weeks of first dose of study treatment
* Known bleeding disorders (example, von Willebrand's disease or hemophilia)
* Central nervous system (CNS) involvement or suspected Richter's syndrome
C: Key Inclusion Criteria:

* Unsuitable for chemoimmunotherapy with fludarabine, cyclophosphamide, and rituximab (FCR)
* Confirmed diagnosis of CD20-positive CLL or SLL, requiring treatment
* Measurable disease by imaging
* Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1 or 2
* Life expectancy ≥ 6 months
* Adequate bone marrow function
* Adequate renal and hepatic function

Key Exclusion Criteria:

* Previous systemic treatment for CLL/SLL
* Requires ongoing need for corticosteroid treatment
* Known prolymphocytic leukemia or history of or suspected Richter's transformation.
* Clinically significant cardiovascular disease
* Prior malignancy within the past 3 years, except for curatively treated basal or squamous cell skin cancer, non-muscle-invasive bladder cancer, carcinoma in situ of the cervix of breast, or localized Gleason score 6 prostate cancer
* History of severe bleeding disorder
* History of stroke or intracranial hemorrhage within 6 months before the first dose of study drug
* Severe or debilitating pulmonary disease
* Inability to swallow capsules or disease affecting gastrointestinal function
* Active infection requiring systemic treatment
* Known central nervous system involvement by leukemia or lymphoma
* Underlying medical condition that will render the administration of study drug hazardous or obscure interpretation of toxicity or AEs
* Known infection with human immunodeficiency virus (HIV) or active hepatitis B or C infection
* Major surgery ≤ 4 weeks prior to start of study treatment
* Pregnant or nursing females
* Vaccination with live vaccine within 35 days prior to the first dose of study drug.
* Ongoing alcohol or drug addiction
* Known hypersensitivity to zanubrutinib, bendamustine, rituximab, or venetoclax (as applicable) or any other ingredients of the study drugs
* Requires ongoing treatment with strong cytochrome P450 (CYP3A) inhibitor or inducer
* Concurrent participation in another therapeutic clinical study

NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.
D: Inclusion Criteria:

Disease Related:

1. Diagnosis of CLL/SLL that meets IWCLL diagnostic criteria.
2. Age 65 yrs and older OR if less than 65 years, must have at least one of the following criteria:

   * Cumulative Illness Rating Score (CIRS) \>6
   * Creatinine clearance estimated \<70 mL/min using Cockcroft-Gault equation.
   * Del 17p by fluorescence in situ hybridization (FISH) or TP53 mutation by polymerase chain reaction (PCR) or Next Generation Sequencing
3. Active disease meeting at least 1 of the following IWCLL criteria for requiring treatment:

   * Evidence of progressive marrow failure as manifested by the development of, or worsening of, anemia and thrombocytopenia
   * Massive, progressive, or symptomatic splenomegaly
   * Massive nodes (at least 10 cm longest diameter), or progressive or symptomatic lymphadenopathy.
   * Progressive lymphocytosis with an increase of more than 50 percent over a 2-month period or a lymphocyte doubling time (LDT) of \<6 months. LDT may be obtained by linear regression extrapolation of absolute lymphocyte counts obtained at intervals of 2 weeks over an observation period of 2 to 3 months. In patients with initial blood lymphocyte counts of \<30,000/µL, LDT should not be used as a single parameter to define indication for treatment. In addition, factors contributing to lymphocytosis or lymphadenopathy other than CLL (eg, infections) should be excluded.
   * Autoimmune hemolytic anemia and/or immune thrombocytopenia that is poorly responsive to corticosteroids or other standard therapy.
   * Autoimmune hemolytic anemia is defined by at least one marker of hemolysis (indirect bilirubin above the upper limit of normal (ULN) not due to liver disease, increased lactate dehydrogenase (above ULN) without alternative etiology, or increased absolute reticulocytosis (above ULN) or bone marrow erythropoiesis in the absence of bleeding AND at least one marker direct or indirect autoimmune mechanism (positive direct antiglobulin for immunoglobulin G \[IgG\] or C3d, cold agglutinins).
   * Immune thrombocytopenia is defined by platelets ≤100,000/µL and increased megakaryocytes on the bone marrow exam.
   * Constitutional symptoms, defined as one or more of the following disease-related symptoms or signs, documented in the patient's record prior to randomization:
   * unintentional weight loss \>10 percent within 6 months prior to screening.
   * significant fatigue (inability to work or perform usual activities).
   * fevers \>100.5°F or 38.0°C for 2 or more weeks prior to screening without evidence of infection.
   * night sweats for more than 1 month prior to screening without evidence of infection.
4. Measurable nodal disease by computed tomography (CT), defined as at least 1 lymph node \>1.5 cm in the longest diameter in a site that has not been previously irradiated. An irradiated lesion may be assessed for measurable disease only if there has been documented progression in that lesion since radiotherapy has ended.

   Laboratory
5. Adequate hematologic function independent of transfusion and growth factor support for at least 7 days prior to screening and randomization.
6. Adequate hepatic and renal function
7. Men and women ≥ 18 years of age.
8. Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.

Exclusion Criteria:

1. Any prior treatment of CLL or SLL
2. Evidence of central nervous system (CNS) involvement with primary disease of CLL/SLL
3. History of other malignancies, except:

   * Malignancy treated with curative intent and with no known active disease present for ≥3 years before the first dose of study drug and felt to be at low risk for recurrence by treating physician.
4. Uncontrolled autoimmune hemolytic anemia or idiopathic thrombocytopenic purpura
5. Known or suspected history of Richter's transformation.
6. Concurrent administration of \>20mg/day of prednisone within 7 days of randomization unless indicated for prophylaxis or management of allergic reactions (eg, contrast)
7. Known hypersensitivity to one or more study drugs
8. Vaccinated with live, attenuated vaccines within 4 weeks of first dose of study drug.
9. Any uncontrolled active systemic infection or an infection requiring systemic treatment that was completed ≤ 7 days before randomization.
10. Known bleeding disorders or hemophilia.
11. History of stroke or intracranial hemorrhage within 6 months prior to enrollment.
12. Known history of human immunodeficiency virus (HIV) or active with hepatitis B virus (HBV) or hepatitis C virus (HCV).
13. Major surgery within 4 weeks of randomization.
14. Any life-threatening illness, medical condition, or organ system dysfunction that, in the investigator's opinion, could compromise the subject's safety or put the study outcomes at undue risk.
15. Currently active, clinically significant cardiovascular disease, such as uncontrolled arrhythmia or Class 3 or 4 congestive heart failure or a history of myocardial infarction, unstable angina, or acute coronary syndrome within 6 months prior to randomization.
16. Unable to swallow capsules or malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel, symptomatic inflammatory bowel disease or ulcerative colitis, or partial or complete bowel obstruction.
17. Concomitant use of warfarin or other vitamin K antagonists.
18. Requires treatment with a strong cytochrome P450 (CYP) 3A inhibitor.
19. Lactating or pregnant
20. Unwilling or unable to participate in all required study evaluations and procedures.
21. Unable to understand the purpose and risks of the study and to provide a signed and dated informed consent form (ICF) and authorization to use protected health information (in accordance with national and local subject privacy regulations).

Answer: A