Answer:
The correct answer is A insulin
Step-by-step explanation:
Cholesterol is a complex lipid which act as precursor for the synthesis of steroid compounds such as vitamin D a lipid soluble vitamin,testosterone a steroid hormone and bile salt helps in fat digestion.
Insulin is a peptide hormone it is composed of amino acids linked with each other by peptide linkages .As a result insulin cannot be synthesized from cholesterol.