Answer:
The correct answer would be c. Ball and socket joints.
The Ball and socket joint is one of the types of synovial joint in which the round or ball-shaped end of one bone and cup or socket-like depression of other bone are complementary in nature.
The ball of one bone fits into the cup of other bone.
It provides greater freedom of movement as compared to another type of joints.
The distal bone can move around in a various number of axes all of which have a common center.
It is primarily present in the hip and shoulder joint of mammals.