Which one of the following statements regarding digestion is correct?

fat present in the food is digested by trypsin and chymotrypsin.
Starch of food is digested by lipases.
Fat of food is digested by lipases.
Nucleic acid is digested by amylases.

The correct answer is (c). Fat of food is digested by lipases.

Trypsin and chymotrypsin are enzymes that digest proteins. Starch is a type of carbohydrate, and amylases are enzymes that digest carbohydrates. Nucleic acids are the molecules that make up DNA and RNA, and nucleases are enzymes that digest nucleic acids.

Lipases are a type of enzyme that breaks down lipids, or fats. They are produced in the pancreas and released into the small intestine, where they help to digest the fat in food. Lipases work by breaking down the fat into smaller molecules that can be absorbed by the body.

The other options are incorrect because they do not describe the correct enzyme that digests the given nutrient. Trypsin and chymotrypsin digest proteins, amylases digest carbohydrates, and nucleases digest nucleic acids.