This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which of the following is intended for use against HCV? 
Select and explain. 
A. Merimepodib, B. Viramidine, C. Ribavirin, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Investigational agents for the treatment of HCV infection are multiple and include inhibitors of the HCV RNA polymerase such as valopicitabine, PIs such as telaprevir, the ribavirin analogs merimepodib and viramidine, an anti-aminophospholipid antibody, a caspase inhibitor, and the immunomodulator thymosin alpha-1. Ref: Katzung 11th edition Chapter 49.