A 60-year-old male is diagnosed with cancer of the esophagus. Which of the following factors most likely contributed to his disease?

A 60-year-old male is diagnosed with cancer of the esophagus. Which of the following factors most likely contributed to his disease?




a. Reflux esophagitis

b. Intestinal parasites

c. Ingestion of salty foods

d. Frequent use of antacids






Answer: A


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