This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Valvular Heart Disease, Subject name: Medicine
[{'content': 'Loud P2 is found in? \nSelect and explain. \nA. Pulmonary HTN, B. MS, C. MR, D. Aortic incompetence', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Pulmonary HTN o Causes of Loud P2Pulmonary hypertension unless proved otherwise.Eisenmenger s syndrome due to ASD, VSD, PDA.Multiple pulmonary thrombi.", 'role': 'assistant'}]