A 55-year-old man starts a new security job that requires a physical exam by a doctor. He has no past medical history, and everyone in his family is healthy. He has a well-balanced diet and exercises every day. He is evaluated during a routine examination which includes a discussion of health maintenance issues. He is surprised to hear that it is recommended for a man of his age to get a colonoscopy. He asks if there are any other options available. Which of the following is an appropriate recommendation with respect to this health maintenance screening strategy?
(A) Fecal occult blood test (FOBT) every 5 years
(B) Annual rectal examination
(C) Flexible sigmoidoscopy every 5 years + FOBT every 3 years
(D) Annual CT colonography (E) Annual CEA levels