Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 1, Randomized, Double-Blind, Placebo-Controlled, Multiple-Ascending Dose Study Evaluating the Safety, Tolerability, and Pharmacokinetic Effects of N91115 in Healthy Subjects
Brief Summary: A study in healthy subjects to assess the safety, tolerability, and pharmacokinetics of N91115.


Options:
A: Key Inclusion Criteria:

* Body weight ≥35 kg.
* Subjects must have an eligibleCFTR genotype.

  * Part 1 and Part 3: Heterozygous for F508del and an MF mutation (F/MF)
  * Part 2: Homozygous for F508del (F/F)
* FEV1 value ≥40% and ≤90% of predicted mean for age, sex, and height

Key Exclusion Criteria:

* History of clinically significant cirrhosis with or without portal hypertension.
* Glucose-6-phosphate dehydrogenase (G6PD) deficiency
* Lung infection with organisms associated with a more rapid decline in pulmonary status.
* History of solid organ or hematological transplantation.

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

* Confirmed diagnosis of CF defined as a sweat chloride value greater than or equal to (\>=)60 millimole per liter (mmol/L) by quantitative pilocarpine iontophoresis.
* Heterozygous for the F508del-CFTR mutation and with a second CFTR mutation that is not likely to respond to VX-661 and/or ivacaftor therapy, genotype to be confirmed via assessment at the Screening Visit.
* Forced Expiratory Volume in 1 Second (FEV1) \>=40 percent (%) and less than or equal to (\<=)90% of predicted normal for age, sex, and height at Screening Visit.

Exclusion Criteria:

* History of any comorbidity that, in the opinion of the investigator, might confound the results of the study or pose an additional risk in administering study drug to the participant.
* An acute upper or lower respiratory infection, pulmonary exacerbation, or changes in therapy (including antibiotics) for pulmonary disease within 28 days before Day 1 (first dose of study drug).
* History of solid organ or hematological transplantation.
* Ongoing or prior participation in an investigational drug study or use of commercially available CFTR modulator within 30 days of screening.
* Pregnant or nursing females.
C: Key Inclusion Criteria:

* Homozygous for the F508del mutation (F/F)
* Forced expiratory volume in 1 second (FEV1) value ≥40% and ≤90% of predicted mean for age, sex, and height

Key Exclusion Criteria:

* Clinically significant cirrhosis with or without portal hypertension
* Lung infection with organisms associated with a more rapid decline in pulmonary status
* Solid organ or hematological transplantation

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

* Subject voluntarily agrees to participate in this study and signs an Institutional Review Board (IRB)-approved informed consent prior to performing any of the screening procedures and in the opinion of the PI complies with all the requirements of the study.
* Subject is healthy, determined at the screening medical evaluation (including but not limited to medical history, physical examination and clinical laboratory evaluations).
* Subject is Caucasian.
* Female subject must be of non-childbearing potential (surgically sterile \[hysterectomy or bilateral tubal ligation\] or post-menopausal ≥ 1 year with follicle stimulating hormone \[FSH\] \> 40 U/L). Women receiving hormone replacement therapy (HRT) are eligible to enroll.
* Male subject must agree to use condoms and refrain from sperm donation from Day 1 until 30 days post last dose or have documentation of vasectomy.
* Subject has a body weight \> 50 kg and body mass index (BMI) between 19.5 and 32 kg/m2, inclusive, at screening.
* Subject has no clinically significant abnormal findings related to their systolic or diastolic blood pressure (BP), per the investigator's judgment, at screening or Day 1.
* Subject has no clinically significant abnormal findings in 12 lead ECG, per the investigator's judgment, at screening.

Exclusion Criteria:

* Subject has clinically significant history or evidence of cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, neurological, immunological, or psychiatric disorder(s) as determined by the investigator or designee.
* Subject has clinically significant abnormalities on a 12 lead ECG done at screening
* Subject has clinically significant abnormalities on a 48-hour ambulatory ECG done at screening
* Subject has any disorder that would interfere with the absorption, distribution, metabolism, or excretion of drugs.
* Subject has any concurrent disease or condition that, in the opinion of the investigator, would make the subject unsuitable for participation in the clinical study.
* Subject is unlikely to comply with the protocol requirements, instructions, and study related restrictions; e.g., uncooperative attitude, unavailable for follow-up call, and/or improbability of completing the clinical study.

Answer: D