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
A 26 yr old asymptomatic woman is found to have arhymias and a systolic murmur associated with midsystolic clicks; which investigation would you use: 
Select and explain. 
A. Electrophysiological testing, B. Tc scan, C. Echocardiography, D. Angiography
C: Echocardiography
Answer: C: Echocardiography 
Explanation: Answer is C (Echocardiography) The history suggests the diagnosis of 'Mitral valve prolapse'(MVP). Investigation of choice for MVP is Echocardiography.