【单选题】A woman exerts a constant horizontal force on a large box. As a result, the box moves across a horizontal floor at a constant speed vo. The constant horizontal force applied by the woman
A.
has the same magnitude as the weight of the box
B.
is greater than the weight of the box.
C.
has the same magnitude as the total force that resists the motion of the box
D.
is greater than the total force that resists the motion of the box
E.
is greater than either the weight of the box or the total force that resists its motion.