Answer: Option C
:
C
A joint is a junction where two or more bones meet. They aid in movement.
Joints are of various types:
$\bullet$ The joint that connect our neck to head is called a pivot joint. It allows movement of neck in the forward and backward direction, as well as sideways movement.
$\bullet$ Hinge jointallows back and forth movement. It is found in ankles, elbows and kneejoints.
$\bullet$ Ball and socket joints form when a bone ending with a ball like structure fits into the socket of adjacent bone. The bone with a ball can move nearly in all directions. These joints are present in hip and shoulder.
$\bullet$ Fixed joints don't permit any movement and are extremely strong. They are present between various bones of the skull.