You Push on Box G That Is Next to Box

Multiple Choice

You push on box G that is next to box H, causing both boxes to slide along the floor, as shown in the figure. The reaction force to your push is

A) the push of box G on box H.
B) the upward force of the floor n box G.
C) the push of box G against you.
D) the push of box H on box G.
E) the acceleration of box G.