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': 'False regarding restrictive cardiomyopathy is- \nSelect and explain. \nA. Filling pressure is increased, B. Left ventricular hyperophy, C. Hea failure is not predominantly right sided, D. In early phase, systolic function is not impaired', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ref: Harrison's 19th E pg: 1566 Both atria are enlarged, sometimes massively. Modest left ventricular dilation can be present, usually with an enddiastolic dimension <6 cm. End-diastolic pressures are elevated in both ventricles, with preservation of cardiac output until late in the disease. Subtle exercise intolerance is usually the first symptom but is often not recognized until after clinical presentation with congestive symptoms. The restrictive diseases often present with relatively more rightsided symptoms, such as edema, abdominal discomfo, and ascites, although filling pressures are elevated in both ventricles.", 'role': 'assistant'}]