This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: CVS, Subject name: Medicine
A 70-year-old man with hypeension wakes up with severe chest pain and diaphoresis. On examination he has bounding pulses with wide pulse pressure. A diastolic murmur is heard along the right sternal border. Which of the following is the possible etiology? 
Select and explain. 
A. Aoic dissection, B. STEMI with papillary muscle dysfunction, C. Myocarditis with functional regurgitation, D. Flash pulmonary edema
A: Aoic dissection
Answer: A: Aoic dissection 
Explanation: Option A= High B.P | Aoic dissection | Leads to Retrograde spread | develop Aoic Root dilation | Leads to develop Aoic Regurgitation- Diastolic Murmur Option B= STEMI with Papillary muscle dysfunction have systolic murmur. Option C= Myocarditis with functional regurgitation- Systolic murmur Option D= Flash Pulmonary edema related to Renal aery stenosis/Reno vascular hypeension