I WILL GIVE BRAINLIEST TO FIRST PERSON WHO ANSWERS THE QUESTION IN COMPLETE SENTENCES! Does anyone here think they became dumber ever since the pandemic?

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.