Josie is a freshman student who wants to be popular and attractive to everyone. She is not happy with her weight, so she tries to diet. However hard she tries, she fails. Angry
at herself, she eats everything she sees. After eating she goes to the bathroom to induce
vomiting.​

Which of the following statements concerning cancer and mutations is correct? a: cancer can only occur with a mutation in a somatic cell. b: usually, multiple mutations are required in different genes to cause cancer. c: none of the other answer options is correct. d: cancer can only occur with a mutation in a germ cell. e: usually, a single mutation is all that is required to cause cancer.