The correct option is C circular motion
The motion of an object which moves in a circular path, is termed as circular motion. Hence motion of the blades of a ceiling fan is an example of circular motion.
Random motion is the one in which there is no defined direction of motion. The object undergoing random motion takes arbitrary path.
Motion in which object moves on a straight path, is called linear motion.
To and fro motion of an object along a mean position is called oscillatory motion.