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 patient presents with intense chest pain of 2 hrs duration ECG shows ST depression in leads I and V1 to V4. There is associated T inversion and CPK-MB is elevated. Which of the following should be included in his management 
Select and explain. 
A. Nitroglycerine drip, B. Aspirin, C. i.v. metoprolol, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None