What would be the consequences if we were to reverse the direction of water flow over the gills of a fish,moving water inward past the operculum,past the gills,the out the mouth?

A)Reversal of water flow would reduce efficiency of gas exchange.
B)Reversal of water flow would change the exchange of gases in the body from carbon dioxide out and oxygen in to carbon dioxide in and oxygen out.
C)Reversal of water flow would increase the efficiency of gas exchange.
D)Reversal of water flow would eliminate diffusion of gases.
E)Reversal of water flow would increase the pressure on the capillaries in the gills.