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POE
DUE
DOE
CDE
DOE
Observe the first, second, and third letters of each triplet independently: the first letter shifts by -1, the second by +1, and the third by -1 in the alphabet.
Observe the first, second, and third letters of each triplet independently: the first letter shifts by -1, the second by +1, and the third by -1 in the alphabet.
Analyze the pattern for the first letter of each triplet
H → G → F → E. The pattern is a consistent backward shift of 1 (H-1=G, G-1=F, F-1=E, E-1=D). The first letter of the missing term is D.
Analyze the pattern for the second letter of each triplet
K → L → M → N. The pattern is a consistent forward shift of 1 (K+1=L, L+1=M, M+1=N, N+1=O). The second letter of the missing term is O.
Analyze the pattern for the third letter of each triplet
I → H → G → F. The pattern is a consistent backward shift of 1 (I-1=H, H-1=G, G-1=F, F-1=E). The third letter of the missing term is E.
A: POE starts with P instead of D; B: DUE has U as the middle letter instead of O; D: CDE starts with C instead of D.
C is correct because the pattern follows a shift of -1, +1, and -1 for the first, second, and third letters respectively, resulting in DOE.
For letter series with multiple characters, always break them down into separate sequences (1st, 2nd, 3rd positions) instead of trying to read the triplet as a whole word.