If a−1=b+2=c−3=d+4, which of the four quantities a,b,c,d is the largest?<spanclass=′latex−bold′>(A)</span>a<spanclass=′latex−bold′>(B)</span>b<spanclass=′latex−bold′>(C)</span>c<spanclass=′latex−bold′>(D)</span>d<spanclass=′latex−bold′>(E)</span>no one is always largest