This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'Muscle contraction following nerve impulse involves following steps expect \nSelect and explain. \nA. Action potential across nerve muscle junction (NMJ), B. Dopamine release at NMJ, C. Release of calcium form sarcoplasmic reticulum, D. Calcium initiates attractive forces between actin and myosin filament', 'role': 'user'}, {'content': "Answer: B \nExplanation: Acetylcholine is the neurotransmitter in the NMJ Ref: Ganong's Review of Medical Physiology 26th edition", 'role': 'assistant'}]