A body (a rigid body) is said to possess a purely rotatory motion if every constituent particle of the body moves in a circle, the centre of which are on a straight line called?

A body (a rigid body) is said to possess a purely rotatory motion if e

1.	A body (a rigid body) is said to possess a purely rotatory motion if every constituent particle of the body moves in a circle, the centre of which are on a straight line called?
A.	The fixed line.
B.	The line of rotation.
C.	The axis of rotation.
D.	The spinning rod.
Answer» D. The spinning rod.