Scenario Jim Has Become Particularly Interested in the Genetic Basis of of Cancer

Scenario
Jim has become particularly interested in the genetic basis of cancer and has spent considerable time reading published papers about oncogenes. He learned that as early as 1972 researchers suggested that mutations in proto-oncogenes caused by carcinogens can convert the proto-oncogenes to oncogenes. He asked you to answer a couple of questions about this because he did not have a sufficient biology background.
-Jim learned that viruses can sometimes cause cancer and wants to know why. You tell him that ________.

A) a human cell can acquire a tumor-suppressor gene from a virus
B) a human cell can acquire a proto-oncogene from a virus
C) a human cell can acquire an oncogene from a virus
D) some viruses are passed from mother to child and cause "inherited" cancers