Final answer:
The synovial joint has the greatest range of motion, with the ball-and-socket subtype enabling the widest variety of movements(option D).
Step-by-step explanation:
The joints with the greatest range of motion are the synovial joints. Among the options given, the synovial joints (D) are the only ones that allow for free movement of the joint, making them highly mobile. Synarthroses, like sutures and synchondroses, are immovable; amphiarthroses, like syndesmoses and symphyses, allow for slight movement. Synovial joints are further classified into subtypes such as ball-and-socket, ginglymus, pivot, condyloid, saddle, and plane joints, with the ball-and-socket joint, such as the shoulder joint, offering the widest range of motion.
Hence, the answer is option D.