Bubbles Will Form on Wires Attached to a 9 V

Bubbles will form on wires attached to a 9 V battery placed in water.What is happening here?

A) The wires are being oxidized.
B) The water is being reduced on the wire attached to the( -) battery electrode and oxidized on the wire attached to the (+) battery electrode.
C) The water is being oxidized on the wire attached to the (-) battery electrode and reduced on the wire attached to the (+) battery electrode.
D) Air is being forced out of the water by the electric current.
E) One wire is being oxidized; the other wire is being reduced.