A merchant placed on display some dresses, each with a marked price. He then posted a sign “31 off on these dresses.” The cost of the dresses was 43 of the price at which he actually sold them. Then the ratio of the cost to the marked price was:
<spanclass=′latex−bold′>(A)</span>21<spanclass=′latex−bold′>(B)</span>31<spanclass=′latex−bold′>(C)</span>41<spanclass=′latex−bold′>(D)</span>32<spanclass=′latex−bold′>(E)</span>43