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
Pantothenic acid is associated with following moiety 
Select and explain. 
A. coenzyme A, B. Carboxyl, C. Hydroxyl, D. H+
A: coenzyme A
Answer: A: coenzyme A 
Explanation: Pantothenic acid is called vitamin B5 It is ised to synthesis co enzyme A in body Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:20,21,22