Which is a risk factor for colon cancer?

• A. Family history
• B. Regular exercise
• C. High-fiber diet
• D. Adequate hydration

Answer: (A)

Risk factors for colon cancer include genetic and familial components that increase a person’s likelihood of developing the disease. Family history matters because inherited genetic mutations and shared environmental factors can raise risk; having first-degree relatives with colon cancer, and certain hereditary syndromes, significantly elevate the likelihood of colorectal cancer.

In contrast, regular exercise, a high-fiber diet, and adequate hydration are protective factors that help reduce the risk or support overall colon health, not increase it. Regular activity improves bowel motility and metabolic health; a high-fiber diet speeds transit time and lowers contact with potential carcinogens; staying well hydrated supports healthy stool formation.