We are swapping two different digits of a number in each step. If we start with the number 12345, which of the following cannot be got after an even number of steps?<spanclass=′latex−bold′>(A)</span>13425<spanclass=′latex−bold′>(B)</span>21435<spanclass=′latex−bold′>(C)</span>35142<spanclass=′latex−bold′>(D)</span>43125<spanclass=′latex−bold′>(E)</span>53124