Choose the odd letter group:

D. M, N, O, P, Q

Choose the group that does not belong:

D. XYZ

Choose the odd letter group: ACD, BDF, CEG, DHI, EJK

D. EJK

Choose the odd letter group: ABC, DEF, GHI, JKL, MNO

D. MNO

Choose the odd letter group: PQRS, UVWX, YZAB, CDEF, GHIJ

C. YZAB