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: Biochemistry
Pantothenic acid is coenzyme for which of the following reaction 
Select and explain. 
A. Dehydrogenation, B. Reduction, C. Transamination, D. Acetylation
D: Acetylation
Answer: D: Acetylation 
Explanation: The functions of pantothenic acid are exerted through coenzyme A or CoA (A for  acetylation). Coenzyme A  is a central molecule involved in all  the  metabolisms (carbohydrate, lipid  and protein).
NOTE : Pantothenic acid as a part of CoA takes part in :

Fatty acid oxidation
Acetylation
Citric acid cycle
Cholesterol synthesis

Ref : Satyanarayana. 3rd ed, pg - 149