BCB, DED, FGF, HIH, ___
Options:
(A) KOP
(B) QLM
(C) JKJ
(D) PSQ
(E) IOP Stream of consciousness:
This series consists of a simple alphabetical order with the first two letters of all segments: B, C, D, E, F, G, H, I, J, K. The third letter of each segment is a repetition of the first letter.
Thus, the answer is (C).