A Curtain Hangs Straight Down in Front of an Open

Multiple Choice

A curtain hangs straight down in front of an open window.A sudden gust of wind blows past the window;and the curtain is pulled out of the window.Which law,principle,or equation can be used to explain this movement of the curtain?

A) Poiseuille's law
B) Bernoulli's equation
C) the equation of continuity
D) Archimedes' principle
E) Pascal's principle