A solid sphere rolls without slipping on an inclined plane, then which of the following is/are correct ?

A solid sphere rolls without slipping on an inclined plane, then which

1.	A solid sphere rolls without slipping on an inclined plane, then which of the following is/are correct ?
Answer» Torque of friction about point of contact is zero Torque of WEIGHT about point of contact is zero Torque of NORMAL reaction about centre of the SPHERE is zero Angular momentum about point of contact is CONSERVED Answer :A::C