Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 3b, Randomized, Multicenter, Open-Label Study to Investigate the Efficacy and Safety of Sofosbuvir/Ledipasvir Fixed-Dose Combination ± Ribavirin in Treatment-Naïve and Treatment-Experienced Japanese Subjects With Chronic Genotype 1 HCV Infection
Brief Summary: This study will evaluate the antiviral efficacy of sofosbuvir (SOF)/ledipasvir (LDV) fixed-dose combination (FDC) tablet with or without ribavirin (RBV) in treatment-naive or treatment-experienced Japanese participants with chronic genotype 1 HCV infection. Participants receive 12 weeks of treatment and continue assessments during a 24-week posttreatment follow-up period.


Options:
A: Inclusion Criteria:

* Body weight ≥ 40 kg
* HCV RNA ≥ 10\^5 IU/mL at screening

Exclusion Criteria:

* Current or prior history of any clinically-significant illness (other than HCV)
* Pregnant or nursing female or male with pregnant female partner
* Chronic liver disease of a non-HCV etiology
* Infection with hepatitis B virus (HBV) or human immunodeficiency virus (HIV)
B: Inclusion Criteria:

* Females must be post-menopausal for at least 2 years or surgically sterile or practicing specific forms of birth control.
* Chronic hepatitis C, genotype 1 infection and HCV RNA level greater than 10,000 IU/mL at screening.
* Previous treatment failure of peg-interferon and ribavirin (pegIFN and RBV).
* No evidence of liver cirrhosis.

Exclusion Criteria:

* Positive screen for drugs or alcohol.
* Significant sensitivity to any drug.
* Use of contraindicated medications within 2 weeks of dosing.
* Certain predefined abnormal laboratory tests.
* Positive hepatitis B surface antigen or anti-human immunodeficiency virus antibody.
C: Inclusion Criteria: - Participant has chronic Genotype 4 Hepatitis C infection

* Plasma hepatitis C virus (HCV) ribonucleic acid (RNA) level greater than 10,000 International unit per milliliter (IU/mL) at Screening
* Participant never received treatment for HCV
* Participant was to be in good health (besides HCV infection), in the opinion of the Investigator, judged on the basis of medical history and physical examination (including vital signs and screening electrocardiogram \[ECG\]), with any chronic medical conditions under stable medical control
* Participant had to be willing to refrain from the concomitant use of any medications or substances Exclusion Criteria: - Participants with history or evidence of cirrhosis or history of suspicion of alcohol, barbiturate, or amphetamine recreational or narcotic drug use, which in the Investigator's opinion would compromise the participant's safety and/or compliance with study procedures
* Participant has human immunodeficiency virus (HIV) or hepatitis B virus (HBV) co-infection
* Female participants who are pregnant, or planning to become pregnant, or breastfeeding, and partners of female participants who are pregnant or breastfeeding
* Participant has hypersensitivity to tartrazine
* Participant had participated in any clinical trial for an investigational drug within 90 days before drug administration or participated in more than 2 drug studies in the last 12 months
D: Inclusion Criteria:

* Infection with HCV genotype 2 or 3
* Cirrhosis determination
* Subject meets one of the following classifications:

  1. IFN unwilling
  2. IFN ineligible
  3. IFN intolerant
* Screening laboratory values within defined thresholds
* Subject has not been treated with any investigational drug or device within 30 days of the Screening visit
* Use of highly effective contraception methods if female of childbearing potential or sexually active male

Exclusion Criteria:

* Prior exposure to an direct-acting antiviral targeting the HCV nonstructural protein (NS)5B polymerase
* Pregnant or nursing female or male with pregnant female partner
* Current or prior history of clinical hepatic decompensation
* History of clinically-significant illness or any other major medical disorder that may interfere with subject treatment, assessment or compliance with the protocol
* Excessive alcohol ingestion or significant drug abuse

Answer: A