This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Murmurs, Subject name: Medicine
Comment on the possible diagnosis in the patient? 
Select and explain. 
A. Tricuspid regurgitation, B. Aoic regurgitation, C. Mitral regurgitation, D. Cor-triatriatum
A: Tricuspid regurgitation
Answer: A: Tricuspid regurgitation 
Explanation: Visible neck pulsations indicating elevated JVP. Choice C and D are ruled out as they are left sided lesions and usually do not lead to changes in JVP. The confusion can be with dancing carotids of aoic regurgitation versus giant CV waves of Tricuspid JVP. The dancing carotid produces an outward displacement and does not sta from base of neck unlike the video shown in the image.