This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pharmacology
[{'content': 'Enzyme papain is used? \nSelect and explain. \nA. To decrease intestinal gas produced during digestive process, B. As Anti helminthic, C. To treat Herpes zoster, D. To treat infected wounds in nucleus pulposus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) To decrease intestinal gas produced during digestive processREF: KDT 6th ed page 649, Katzung 12th ed pagePapain It is a proteolytic enzyme obtained from raw papaya. It is used as digestant. Its efficacy after oral ingestion is doubtful', 'role': 'assistant'}]