Answer:
The correct answer is A) independent of the host cell's DNA but dependent on the host cell's enzymes and metabolism.
Explanation:
Virus is not considered as alive when present outside its host body because it can not replicate outside because the essential enzymes and factor needed for replication is not present in the virus.
Therefore when the virus enters into its host body then it enters the host cell and uses the host cell's enzymes and metabolism to replicate it's genetic material independently from the cell's DNA and produce new viral proteins which help in making new viral particles.
Then these new virus ruptures the cell during lytic cycle and infects other cells to produce more viral particles. Therefore the right answer is A.
