Jerry and Silvia wanted to go from the southwest corner of a square field to the northeast corner. Jerry walked due east and then due north to reach the goal, but Silvia headed northeast and reached the goal walking in a straight line. Which of the following is closest to how much shorter Silvia's trip was, compared to Jerry's trip?<spanclass=′latex−bold′>(A)</span>30%<spanclass=′latex−bold′>(B)</span>40%<spanclass=′latex−bold′>(C)</span>50%<spanclass=′latex−bold′>(D)</span>60%<spanclass=′latex−bold′>(E)</span>70%