Let O be the intersection point of medians AP and CQ of triangle ABC. If OQ is 3 inches, then OP, in inches, is:<spanclass=′latex−bold′>(A)</span>3<spanclass=′latex−bold′>(B)</span>29<spanclass=′latex−bold′>(C)</span>6<spanclass=′latex−bold′>(D)</span>9<spanclass=′latex−bold′>(E)</span>undetermined