Correct answer: C
Rationale
According to the Multi-Society Task Force on Colorectal Cancer, colonoscopy should be performed 1 year after resection, and again 3 years later, in order to decrease the risk of metachronous colorectal cancer.
Reference
1. Kahi CJ, Boland CR, Dominitz JA. Gastroenterology. 2016. 150(3):758-68.e11.