Select the correct answer.
Which of the following statements about striving for a goal is TRUE?
A.
If you do not succeed the first time you try to achieve your goal, you should find a new goal.
B.
When you face a barrier to your goal you may need to ask others for help.
C.
The most important thing about goal setting is that you achieve your goal.
D.
All of the above

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.