What happens in an esterification reaction to make a lipid?

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Many lipids are esters, which result from the chemical reaction of a carboxylic acid with an alcohol. ... Triglycerides, esters formed from one molecule of glycerol (an alcohol) and three fatty acid molecules (carboxylic acids), make up most of the lipids stored in our bodies or found in our diet.

b is the best answer for this question.

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.