An Airfoil Provides Lift Because Air Moving Over a Wing

An airfoil provides lift because air moving over a wing must travel

A) a greater distance than air moving under the wing, creating a lower pressure system above the wing.
B) a greater distance than air moving under the wing, creating a higher pressure system above the wing.
C) a lesser distance than air moving under the wing, creating a lower pressure system above the wing.
D) a lesser distance than air moving under the wing, creating a higher pressure system above the wing.