Find the odd number / letters / word from the given alternative:

DECB
GDFE
HKIJ
JFHG

The answer is D. JFHG.

In each of the other options, the letters are in alphabetical order. In D, the letters are not in alphabetical order.

A. DECB: D, E, C, B
B. GDFE: G, D, F, E
C. HKIJ: H, K, I, J