2013 Fermat 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?

\textbf{(A)}\ 24 \text{ L}\quad \textbf{(B)}\ 28 \text{ L}\quad \textbf{(C)}\ 30 \text{ L}\quad \textbf{(D)}\ 36 \text{ L}\quad \textbf{(E)}\ 40 \text{ L}

If there are no answer choices shown, enter a numerical answer.

Full credit to this problem is given to the CEMC, you may view all Fermat contests here.