A Plastic Rod Is Charged Up by Rubbing a Wool

Multiple Choice

A plastic rod is charged up by rubbing a wool cloth,and brought to an initially neutral metallic sphere.It is allowed to touch the sphere for a few seconds,and then is separated from the sphere by a small distance.After the rod is separated,the rod

A) is repelled by the sphere.
B) is attracted to the sphere.
C) feels no force due to the sphere.