The enzyme which hydrolyses triglycerides to fatty acids and glycerol is called:

Lipase

The answer is (4) lipase.

Lipase is an enzyme that catalyzes the hydrolysis of triglycerides to fatty acids and glycerol. Triglycerides are the main component of fats, and they are broken down by lipase in the digestive system.

Pepsin is an enzyme that digests proteins, zymase is an enzyme that converts glucose to ethanol, and maltose is a type of sugar. None of these enzymes breaks down triglycerides.