Objects A and B move simultaneously in the coordinate plane via a sequence of steps, each of length one. Object A starts at (0,0) and each of its steps is either right or up, both equally likely. Object B starts at (5,7) and each of its steps is either left or down, both equally likely. Which of the following is closest to the probability that the objects meet?<spanclass=′latex−bold′>(A)</span>0.10<spanclass=′latex−bold′>(B)</span>0.15<spanclass=′latex−bold′>(C)</span>0.20<spanclass=′latex−bold′>(D)</span>0.25<spanclass=′latex−bold′>(E)</span>0.30