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
In which of the following cases, apical diastolic murmur occur: 
Select and explain. 
A. Mital regurgitation, B. Mitral stenosis, C. Aortic stenosis, D. Ventricular septal defect
B: Mitral stenosis
Answer: B: Mitral stenosis 
Explanation: None