A Small Mass and a Large Mass Are in Contact

Multiple Choice

A small mass and a large mass are in contact with each other while resting on a smooth table. An external force is applied to one of the masses (in a direction toward the other mass) . The contact force between the masses is

A) largest when the external force is applied to the smaller mass.
B) largest when the external force is applied to the larger mass.
C) the same whether the external force is applied to the smaller or larger mass.
D) zero in all cases.