Pantothenic acid is coenzyme for which of the following reaction

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