The right answer is A glycerol molecule with three fatty acid chains attached to it.
This structure is called triglycerides (glycerol + 3 fatty acids).
Triglycerides are part of the cholesterol of lipid compounds or fats of the body. They are the main energy reserve of the body and are therefore beneficial for staying in shape, provided that the blood levels are in the normal range. When triglyceride levels are high, cardiovascular risk increases.