This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lipids, Subject name: Biochemistry
Which of the following is required in the synthesis of acetylcholine - 
Select and explain. 
A. Inositol, B. Carnitine, C. Glycine, D. Choline
D: Choline
Answer: D: Choline 
Explanation: Ans. is 'd' i.e., Choline o Acetylcholine is synthesized in the cytosol of nerve terminal from acetyl-CoA and choline, in the presence of choline-O-acetyltransferase.Acetyl CoA + Cholinecholine-O-acetyltransferase---------------------Acetylcholine + CoA