When 171 is written as the sum of 19 consecutive integers, the median of those numbers is M. When 171 is written as the sum of 18 consecutive integers, the median of those numbers is N. Find ∣M−N∣.<spanclass=′latex−bold′>(A)</span>−1<spanclass=′latex−bold′>(B)</span>−0.5<spanclass=′latex−bold′>(C)</span>0<spanclass=′latex−bold′>(D)</span>0.5<spanclass=′latex−bold′>(E)</span>1