Evaluate Using Pascal's Triangle $\left( \begin{array} { l } 6 \\5\end{array} \right)$

Multiple Choice

Evaluate using Pascal's triangle.​ $\left( \begin{array} { l } 6 \\5\end{array} \right)$ ​

A) $\left( \begin{array} { l } 6 \\5\end{array} \right) = 720$
B) $\left( \begin{array} { l } 6 \\5\end{array} \right) = 21$
C) $\left( \begin{array} { l } 6 \\5\end{array} \right) = 56$
D) $\left( \begin{array} { l } 6 \\5\end{array} \right) = 1$
E) $\left( \begin{array} { l } 6 \\5\end{array} \right) = 6$