Alice refuses to sit next to either Bob or Carla. Derek refuses to sit next to Eric. How many ways are there for the five of them to sit in a row of 5 chairs under these conditions?<spanclass=′latex−bold′>(A)</span>12<spanclass=′latex−bold′>(B)</span>16<spanclass=′latex−bold′>(C)</span>28<spanclass=′latex−bold′>(D)</span>32<spanclass=′latex−bold′>(E)</span>40