9. A mass has a charge on it. Another small mass with a positive charge is moved away from the first mass, which remains at rest. As the distance increases, what happens to the gravitational potential energy E3 and the electric potential energy EE? a} Hg decreases and :5}; decreases. b] EE either decreases or increases depending on the unknown sign of charge, and 39 decreases. c) 13,, decreases and EE increases. d] EE either decreases or increases depending on the unknown sign of charge, and E3 increases. e} Es increases and EE decreases