Find the Volume of the Described Solid $\pi$ B) 2 $\pi$ C) 4

Multiple Choice

Find the volume of the described solid.
-The base of a solid is the region between the curve y = 4cos x and the x-axis from x = 0 to . The cross sections perpendicular to the x-axis are squares with bases running from the x-axis to the curve.

A) 8 $\pi$
B) 2 $\pi$
C) 4 $\pi$
D) 15/4 $\pi$