Which vitamin acts as a coenzyme for the enzyme carboxylase, involved in the synthesis of fatty acids and cholesterol?

A Vitamin B12
B Vitamin B7
C Vitamin K
D Vitamin B5
Vitamin B5, also known as pantothenic acid, is a component of CoA, which is essential for fatty acid synthesis and cholesterol production.
Pantothenic = Pant = Panting for energy from fatty acids
Biochemistry textbooks
Vitamins Biochemistry Fatty Acid Synthesis Medium MEDICAL Confidence: high