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: Physiology
The neuromuscular transmitter released at neuromuscular junction is: 
Select and explain. 
A. Dopamine, B. Epinephrine, C. Nor epinephrine, D. Acetylcholine
D: Acetylcholine
Answer: D: Acetylcholine 
Explanation: None