A Sheet of Paper Can Be Withdrawn from Under a Container

Multiple Choice

A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is jerked quickly.This best demonstrates that

A) the milk carton has no acceleration.
B) there is an action-reaction pair of forces.
C) gravity tends to hold the milk carton secure.
D) the milk carton has inertia.
E) none of these