Answer: Option B.
Cholesterol.
Explanation:
Cholesterol is a steriod or fat found in blood and body tissues. The liver is the major source of cholesterol but it can also be gotten from foods consumed. It is an essential component in cell membrane and it help to produce hormones, fat soluble vitamins and bile acid needed for digestion.
Haemologbin, insulin, enzymes and antibodies all contain amino acids.
Cholesterol contain alcohol and steroid.
