Which of the following statements best describes the relationship between the environment and the collective health
of the world?
A The environment does not affect our health
B. When the environment is damaged, our health in proves
C What is good for the environment is good for our health
D. Our collective health is not related to the health of the environment
Please select the best answer from the choices provided.

Viruses use the host's machinery to make copies of themselves. however, some human viruses require a type of replication that humans do not normally have. for example, humans normally do not have the ability to convert rna into dna. how can these types of viruses infect humans, when human cells cannot perform a particular role that the virus requires? a) the virus causes mutations in the human cells, resulting in the formation of new enzymes that are capable of performing these roles.b) the viral genome codes for specialized enzymes not in the host.c) the virus infects only those cells and species that can perform all the replication roles necessary.d) viruses can stay in a quiescent state until the host cell evolves this ability.