Ans: B
Mark $O$ the centre of rotation. Mark also $A$ in the figure as shown. If we rotate the figure clockwise through $360^\circ$ about $O$, the figure will coincide $4$ times. Therefore, the number of folds of rotational symmetry of the figure is $4$.
Mark $O$ the centre of rotation. Mark also $A$ in the figure as shown. If we rotate the figure clockwise through $360^\circ$ about $O$, the figure will coincide $4$ times. Therefore, the number of folds of rotational symmetry of the figure is $4$.
