Question

multiple choice question
which of these occurs in both saturated and unsaturated forms?

fatty acids
glycerols
carbohydrates
waxes

Explanation:

Fatty acids can be saturated (no double bonds between carbon atoms) or unsaturated (with one or more double bonds). Glycerols have a fixed structure and don't have saturated/unsaturated forms. Carbohydrates are classified by their structure (mono, di, polysaccharides) not by saturation. Waxes are typically saturated esters. So fatty acids occur in both forms.

Answer:

A. Fatty acids