Cholesterol and other steroids are classified as: a) Fatty acids b) Carbohydrates c) Arachidonic acid d) Isoprenoids

A) Fatty acids

Explanation:

Sterols are the organic compounds composed of the four rings fused together, an attached hydrocarbon chain and the characteristic functional group called -OH group attached to the ring.

The steroids are the compounds which contain the fused rings (a feature of sterol) and the attached -OH group. The presence of the hydrophobic chain provide makes them insoluble in water which is considered a characteristic feature of the lipids. Therefore the steroids are considered the lipid molecule or fatty acid-containing molecules.

The cholesterol is the most common type of sterol present in the organism, especially in the animal and plants.

Thus, Option-A is the correct answer.