This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Risk factor for development of gastric Ca 
Select and explain. 
A. Blood group O, B. Duodenal ulcer, C. Intestinal hyperplasia, D. Intestinal metaplasia type III
D: Intestinal metaplasia type III
Answer: D: Intestinal metaplasia type III 
Explanation: Risk factors are:Long-term ingestion of high concentration of nitrates.H.pyloriIntestinal metaplasia in patients with atrophic gastritis.Gastric ulcers and adenomatous polyps.Menetrier's disease.Patients with blood group A have a higher incidence of Ca stomach than blood group O.Note: duodenal ulcers are not associated with gastric cancer.