Correct choice is (c) Mg hydroxide
For explanation: Neutralization of gastric acid by antacids are by sodium carbonate, magnesium hydroxide, etc. Ulcer protectives are such as sucralfate, Colloidal Bismuth Subricate. Anti H. pyloric drugs are amoxicillin, tinidazole, and tetracycline.H2 antihistamines are cimetidine. Proton pump inhibitor will be omeprazol. Prostaglandin analogues are misoprostol.