A Dancer Begins Performing a Pirouette with Arms Extended

A dancer begins performing a pirouette with arms extended. (A pirouette is a complete spin about a vertical axis.) This motion is completed most easily when the rotational inertia is decreased by

A) bending at the waist at a right angle.
B) extending the arms and one leg straight out to the sides.
C) holding the arms straight up and extending one foot straight out to the side.
D) bringing the arms and legs in a line with the body.