Denise poured milk into a glass shaped like a right circular cylinder with a radius of 2 inches. When she added chocolate syrup to the milk, the height of the liquid in the glass increased by 2 inches. What was that she added to the glass of milk?
answers choices:
A.12.56in^3
B.6.28in^3
C.3.14in^3
D.1.57in^3