Match List I with List II :

List I		List II
A	EFibrous joints	I	Adjacent vertebrae, limited movement
B	Cartilaginous joints	II	Humerus and Pectoral girdle, rotational movement
C	Hinge joints	III	Skull, don’t allow any movement
D	Ball and socket joints	IV	Knee, help in locomotion

Choose the correct answer from the options given below :

To find the correct match, let us analyze the types of joints listed in List I and their characteristics/examples in List II:

A. Fibrous joints: These joints do not allow any movement because the bones are held firmly together by dense fibrous connective tissues. A classic example is the sutures of the flat skull bones which fuse to form the cranium.
Hence, A matches with III (Skull, don’t allow any movement).

B. Cartilaginous joints: In these joints, the bones are joined together with the help of cartilages. This type of joint permits only limited movement. A prime example is the joint between adjacent vertebrae in the vertebral column.
Hence, B matches with I (Adjacent vertebrae, limited movement).

C. Hinge joints: These are synovial joints that allow movement primarily in a single plane, similar to the hinge of a door, and are crucial in assisting locomotion. The knee joint is a characteristic example of a hinge joint.
Hence, C matches with IV (Knee, help in locomotion).

D. Ball and socket joints: These synovial joints consist of a ball-like surface of one bone fitting into a cup-like depression of another, allowing free rotational movement in multiple directions. A key example is the joint between the humerus and the pectoral girdle (shoulder joint).
Hence, D matches with II (Humerus and Pectoral girdle, rotational movement).

Combining all the correct matches, we get:
A - III, B - I, C - IV, D - II