Assertion : A solid sphere is rolling on a rough horizontal surface. Acceleration of contact point is zero.

Reason : A solid sphere can roll on the smooth surface.

• A

  If both assertion and reason are true and reason is a true explanation of assertion.

• B

  If both assertion and reason are true but reason is not the correct explanation of assertion

• C

  If assertion is true but reason is false.

• D

  If both assertion and reason are false.