Phase 3, Randomized, Controlled, Open-label Study to Compare the Efficacy and Safety of Bemnifosbuvir-Ruzasvir Fixed dose Combination (BEM/RZR FDC) Versus Sofosbuvir-Velpatasvir Fixed-dose Combination (SOF/VEL FDC) in Subjects with Chronic Hepatitis C Virus (HCV) Infection