In triangle ABC, AB\equal{}AC, \angle A\equal{}40^\circ. Point O is within the triangle with ∠OBC≅∠OCA. The number of degrees in angle BOC is:
<spanclass=′latex−bold′>(A)</span>110<spanclass=′latex−bold′>(B)</span>35<spanclass=′latex−bold′>(C)</span>140<spanclass=′latex−bold′>(D)</span>55<spanclass=′latex−bold′>(E)</span>70