Final answer:
The lymphatic system is responsible for draining excess fluid from the tissues and preventing swelling. It transports the fluid, called lymph, back to the bloodstream.
Step-by-step explanation:
The correct answer is c) lymphatic system. The lymphatic system is responsible for draining the excess fluid from the tissues and returning it back to the bloodstream. This prevents the fluid from accumulating and causing swelling (edema). The lymphatic system consists of a network of vessels, trunks, and ducts that transport the fluid, known as lymph, back to the bloodstream.