A Positively Charged Metal Sphere a Is Brought into Contact

Multiple Choice

A positively charged metal sphere A is brought into contact with an uncharged metal sphere B.As a result:

A) both spheres are positively charged
B) A is positively charged and B is neutral
C) A is positively charged and B is negatively charged
D) A is neutral and B is positively charged
E) A is neutral and B is negatively charged