Concept:Find the pattern of alphabetic positions in each group and spot the group that does not match.Explanation:Assign positions: E=5, G=7, I=9, so 5→7→9 means +2 each step.M=13, O=15, Q=17, so 13→15→17 means +2 each step.U=21, W=23, Y=25, so 21→23→25 means +2 each step.But N=14, L=12, J=10, so 14→12→10 means −2 each step.Thus, all groups except NLJ increase by +2.