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': 'Carcinoid of hea presents as? \nSelect and explain. \nA. Aoic stenosis, B. Tricuspid regurgitation, C. Mitral stenosis, D. Aoic regurgitation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tricuspid valve disease (especially regurgitation) was most prevalent. Patients with carcinoid hea disease typically present with symptoms of right hea failure (hepatomegaly, edema, ascites, fatigue and low cardiac output). Ref Davidson 23rd edition pg 455', 'role': 'assistant'}]