Final answer:
The largest joint in the body is the knee joint, which consists of three articulations and connects the femur to the tibia.
Step-by-step explanation:
The largest joint in the body is the knee joint. It is composed of three articulations: the femoropatellar joint, the medial tibiofemoral joint, and the lateral tibiofemoral joint. The knee joint connects the femur, or thighbone, to the tibia, which is the lower leg bone. This joint is essential for movement and bears significant weight and stress during activities such as walking and standing.
While the shoulder joint, known as the glenohumeral joint, has the largest range of motion of any joint in the body, it is not the largest in size. The hip joint, also a ball-and-socket joint, provides strength and stability to the body but has a more limited range of motion compared to the shoulder joint. Hence, the correct answer to the question is C. Knee.