The bond order of a homonuclear diatomic molecule can be decreased by
a. removing electrons from bonding MO or adding = electrons to an antibonding MO
b. adding electrons t0 a bonding MO or removing electrons from an antibonding MO
c. adding electrons to any MO
d. removing electrons from any MO
e. The bond order of a homonuclear diatomic molecule cannot be decreased by any means_