AMC 8 2015 Problem 19

A triangle with vertices as $A=(1,3)$, $B=(5,1)$, and $C=(4,4)$ is plotted on a $6\times5$ grid. What fraction of the grid is covered by the triangle? $\textbf{(A) }\frac{1}{6} \textbf{(B) }\frac{1}{5} \textbf{(C) }\frac{1}{4} \textbf{(D) }\frac{1}{3} \textbf{(E) }\frac{1}{2}$