Virus is not regarded as a cell, because

A. It is anactive unless it finds a host to multiply

B. Most of the cellular activity is absent

C. The genetic material does not replicate on its own

D. All of the above

Answer: Option D

Solution(By Examveda Team)

Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.