Pick the odd man out.A. B. C. D.

Explanation: In three of the sequences the second letter is two places after the first, and the third letter is one place before the second (pattern: +2, then -1).

• KML: K → M is +2, M → L is -1 (follows +2, then -1).

• PRQ: P → R is +2, R → Q is -1 (follows +2, then -1).

• TVU: T → V is +2, V → U is -1 (follows +2, then -1).

• NPQ: N → P is +2, but P → Q is +1 (does not follow the expected -1).

Answer: NPQ is the odd one out because it violates the +2 then -1 letter-shift pattern.