This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
[{'content': "Loud pulmonary component of second hea sound heard in - \nSelect and explain. \nA. Pulmonary hypeension, B. TOF, C. Eissenmenger's syndrome, D. Pulmonary stenosis", 'role': 'user'}, {'content': 'Answer: A \nExplanation: The Second hea has two components. The Aoic and Pulmonary. The Aoic component is loud in systemic hypeension and the Pulmonary component is increased in Pulmonary hypeension. Reference : Harrison 20th edition pg 1545', 'role': 'assistant'}]