text: Colonoscopy and flexible sigmoidoscopy are diagnostic studies of choice to diagnose colon polyps.
option_0: Colon polyps diagnostic study of choice
option_1: Colorectal cancer diagnostic study of choice
option_2: Stomach cancer Diagnostic study of choice
option_3: Colon polyps other diagnostic studies
option_4: Gastrointestinal varices diagnostic study of choice
option_5: Lower gastrointestinal bleeding diagnostic study of choice
option_6: Colon polyps other imaging findings
option_7: Irritable bowel syndrome diagnostic study of choice