The entries in a 3×3 array include all the digits from 1 through 9, arranged so that the entries in every row and column are in increasing order. How many such arrays are there?
<spanclass=′latex−bold′>(A)</span>18<spanclass=′latex−bold′>(B)</span>24<spanclass=′latex−bold′>(C)</span>36<spanclass=′latex−bold′>(D)</span>42<spanclass=′latex−bold′>(E)</span>60