Jar A and Jar B each contain 10 beans. The number of beans in jar A is doubled, and the number of beans in jar B is halved. How many beans are now in jars A and B?<spanclass=′latex−bold′>(A)</span>15<spanclass=′latex−bold′>(B)</span>20<spanclass=′latex−bold′>(C)</span>25<spanclass=′latex−bold′>(D)</span>30<spanclass=′latex−bold′>(E)</span>40