<prompt> Risk factor for the development of gastric Carcinoma among the following isBlood group ODuodenal ulcerIntestinal hyperplasiaIntestinal metaplasia type III  <response>: Risk factors are:Long-term ingestion of high concentration of nitrates.H.pyloriIntestinal metaplasia in patients with atrophic gastritis.Gastric ulcers and adenomatous polyps.Menetriers 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.Ref: Harrisons 18e 765. 