You Are Sitting on a Stool That Can Rotate Friction-Free

Multiple Choice

You are sitting on a stool that can rotate friction-free about its vertical axis, holding a spinning bicycle wheel that rotates in a horizontal plane. When you flip the bicycle wheel (turn it over through 180^o) , you will

A) rotate in the same direction the bicycle wheel was originally rotating.
B) stay still.
C) rotate in the direction opposite to that of the bicycle wheel's original rotation.