If the degree measures of the angles of a triangle are in the ratio 3:3:4, what is the degree measure of the largest angle of the triangle?
<spanclass=′latex−bold′>(A)</span>18<spanclass=′latex−bold′>(B)</span>36<spanclass=′latex−bold′>(C)</span>60<spanclass=′latex−bold′>(D)</span>72<spanclass=′latex−bold′>(E)</span>90