Which number in the array below is both the largest in its column and the smallest in its row? (Columns go up and down, rows go right and left.)
\begin{array}{|c|c|c|c|c|}
\hline
10 & 6 & 4 & 3 & 2 \\
\hline
11 & 7 & 14 & 10 & 8 \\
\hline
8 & 3 & 4 & 5 & 9 \\
\hline
13 & 4 & 15 & 12 & 1 \\
\hline
8 & 2 & 5 & 9 & 3 \\
\hline
\end{array}
Answer Choices
A. 1
B. 6
C. 7
D. 12
E. 15