Shauna takes 5 tests, each worth a maximum of a 100 points. Her scores on the first three tests were 76, 94, and 87. In order to average an 81 on all five tests, what is the lowest score she could earn on one of the two tests?<spanclass=′latex−bold′>(A)</span>48<spanclass=′latex−bold′>(B)</span>52<spanclass=′latex−bold′>(C)</span>66<spanclass=′latex−bold′>(D)</span>70<spanclass=′latex−bold′>(E)</span>74