Which of the following is a stage of the virus life cycle?

• A. Design
• B. Replication
• C. Launch
• D. Elimination

Answer: (B)

Viral replication is the phase where the virus uses the host cell’s machinery to copy its genome and synthesize viral proteins, leading to the production of new virus particles. This step is central to how a virus propagates, followed by assembly and release of new virions. That’s why replication is the correct choice. The other terms don’t describe a stage of the virus life cycle: design isn’t a viral propagation stage, launch isn’t a recognized virology term for a life cycle step, and elimination refers to removing the virus rather than a step in its replication and spread.