Which of the following statements is/are correct regarding uniform circular motion and uniform motion along a straight line?

(a) The direction of motion changes at every point of motion in a uniform circular motion.

(b) The magnitude of the displacement is equal to the actual distance covered by the object for uniform motion along a straight line.

(c) The net force is required for an object to be in uniform motion along a straight line.

(d) The magnitude of velocity in uniform circular motion doesn’t depend upon the time interval.