If Lower Termites Are Fed Antibiotics They Cannot Survive Because

If lower termites are fed antibiotics they cannot survive because:

A) Their cellulase-producing bacterial endosymbionts are killed
B) Their cellulase-producing protozoan endosymbionts are killed
C) Their nitrogenous compound-providing bacterial endosymbionts are killed
D) Their nitrogenous compound-providing protozoan endosymbionts are killed
E) The methanogens in the termite intestine are killed