Choose the odd letter group:

D. M, N, O, P, Q

Identify the odd letter group:

D. C, D, E, F, G

Select the odd letter group:

D. B, C, D, E, F

Choose the odd letter group: ACD, BDF, CEG, DFI, EGH

D. EGH

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

C. JKL