FERMAT 2013 Problem 4

A large cylinder can hold 50\:L of chocolate milk when full. The tick marks show the division of the cylinder into four parts of equal volume. Which of the following is the best estimate for the volume of chocolate milk in the cylinder as shown?

Answer Choices
A. 24\:L
B. 28\:L
C. 30\:L
D. 36\:L
E. 40\:L