This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Most common valvular lesion in Carcinoid Syndrome of the Hea is: 
Select and explain. 
A. Aoic Stenosis, B. Mitral Stenosis, C. Tricuspid regurgitation, D. Aoic regurgitation
C: Tricuspid regurgitation
Answer: C: Tricuspid regurgitation 
Explanation: Answer is C (Tricuspid Regurgitation) Carcinoid syndrome most frequently involves the ventricular aspect of the tricuspid valve. The predominant lesion due to involvement of the tricuspid valve is Tricuspid regurgitation.