A regular 15-gon has L lines of symmetry, and the smallest positive angle for which it has rotational symmetry is R degrees. What is L+R?<spanclass=′latex−bold′>(A)</span>24<spanclass=′latex−bold′>(B)</span>27<spanclass=′latex−bold′>(C)</span>32<spanclass=′latex−bold′>(D)</span>39<spanclass=′latex−bold′>(E)</span>54