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: Pharmacology
Which of the following drug is used for reversal of cerebral vasospasm and infarct following subarachnoid hemorrhage ? 
Select and explain. 
A. Nimodipine, B. Amlodipine, C. Diltiazem, D. Verapamil
A: Nimodipine
Answer: A: Nimodipine 
Explanation: None