Last year 100 adult cats, half of whom were female, were brought into the Smallville Animal Shelter. Half of the adult female cats were accompanied by a litter of kittens. The average number of kittens per litter was 4. What was the total number of cats and kittens received by the shelter last year?<spanclass=′latex−bold′>(A)</span>150<spanclass=′latex−bold′>(B)</span>200<spanclass=′latex−bold′>(C)</span>250<spanclass=′latex−bold′>(D)</span>300<spanclass=′latex−bold′>(E)</span>400