which one is the correct answer?
 

Dear student,
we know, acceleration means the rate of change in velocity
As the boy is moving in a circular path, its velocity is continuously changing, to be specific, the direction of velocity is continuously changing. (As the velocity is tangentially outward at any point when an object is moving in a circular path)
So the motion is accelerated motion.
(option c)
and the acceleration acts along the radius of the circular path and towards the centre
Regards,

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