2001 AMC 10 Problem 1

The median of the list n, n + 3, n + 4, n + 5, n + 6, n + 8, n + 10, n + 12, n + 15 is 10. What is the mean?

\textbf{(A) } 4 \qquad\textbf{(B) } 6 \qquad\textbf{(C) } 7 \qquad\textbf{(D) } 10 \qquad\textbf{(E) } 11

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.