Which of the following structures contains a monohydric alcohol instead of glycerol?

Assertion $(S)$: In the structure of lipids,one to three molecules of fatty acids are attached to one molecule of alcohol.
Reason $(R)$: Alcohol is present in the structure of lipids in the form of trihydroxy alcohol or monohydroxy alcohol.

$A$ typical fat molecule is made up of

The hydrolysis of lipids produces ...... .

Match the following columns correctly:

Column-$I$	Column-$II$
$(1)$ Stearic acid	$(a)$ $CH_3-(CH_2)_2COO^-$
$(2)$ Butyric acid	$(b)$ $CH_3-(CH_2)_{16}COO^-$
$(3)$ Palmitic acid	$(c)$ $R-COOH$
$(4)$ Fatty acid	$(d)$ $CH_3(CH_2)_{14}COO^-$

Cholesterol is synthesised in