This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
All of the following are true about excitation-contraction coupling in skeletal muscle except that 
Select and explain. 
A. Acetylcholine is released at the nerve terminal, B. Ca2+ is released from sarcoplasmic reticulum during contraction, C. Ca2+ is pumped back into sarcoplasmic reticulum during relaxation, D. Ca2+ binds to tropomyosin to initiate muscle contraction
D: Ca2+ binds to tropomyosin to initiate muscle contraction
Answer: D: Ca2+ binds to tropomyosin to initiate muscle contraction 
Explanation: Ca2+ binds to troponin C (not Tropomyosin) to initiate muscle contraction. Ref: Ganong&;s Review of Medical Physiology 26th edition Pgno: 105