Explanation:

- To solve the problem, observe each option closely.

- Option 1: OQRM

- Letters are consecutive in the alphabet: O, Q, R, M.

- Option 2: GIJF

- Letters are consecutive: G, I, J, F, but not in the standard sequential order.

- Option 3: DFGB

- Letters are random: D, F, G, B.

- Option 4: VXYT

- Letters are consecutive: V, X, Y, T, but not in the standard sequential order.

- Option 5: JLMH

- Letters are consecutive: J, L, M, H, but not in the standard sequential order.

- The odd one out is Option 3: DFGB because its letters are not in any discernible sequence or pattern unlike the others, which maintain some pattern.

CORRECT ANSWER: Option 3 - DFGB