Concept:Each column follows a pattern of increasing the alphabetical position by 3.
Explanation:Assign number to each letter: A=1, B=2, ..., Z=26.
First column: A(1), D(4), G(7) → add 3 each step.
Second column: P(16), S(19), V(22) → add 3 each step.
Third column: H(8), K(11), ? → next is 11+3 = 14, which corresponds to N.
Answer:D. N
