A Submarine Rests on the Sea Bottom

Multiple Choice

A submarine rests on the sea bottom. The normal force exerted upon the sub by the sea-floor is equal to

A) the weight of the sub plus the weight of the displaced water.
B) the weight of the sub.
C) the weight of the sub less the weight of the displaced water.
D) the weight of the displaced water.
E) the buoyant force less 1 atmosphere acting on the sub.