Two nonadjacent vertices of a rectangle are (4,3) and (−4,−3), and the coordinates of the other two vertices are integers. The number of such rectangles is<spanclass=′latex−bold′>(A)</span>1<spanclass=′latex−bold′>(B)</span>2<spanclass=′latex−bold′>(C)</span>3<spanclass=′latex−bold′>(D)</span>4<spanclass=′latex−bold′>(E)</span>5