You are showing the trick of pulling a sheet of paper from under a glass of water without moving the glass much or spilling the water.
A. You should pull the paper fast to reduce the friction force between the paper and glass.
B. You have to pull paper very slowly to keep the glass from moving.
C. You are pulling the paper fast so the force of friction acts on the glass for a very short time.
D. The glass does not move at all if you are fast enough.