Correct option is A
Given:
Series- ap, ds, gv, ?

Logic:
These letters follow an alphabetical sequence, where each letter is three steps ahead
Analyze the 1st characters
a → d → g → ?
Each letter is skipping 2 letters in the alphabet (a → d → g).
The next letter after g, skipping 2, is j.
Analyze the 2nd characters
p → s → v → ?
Each letter is skipping 2 letters in the alphabet (p → s → v).
The next letter after v, skipping 2, is y.
Combine the results
The next term in the series is jy.
Thus, correct answer is (a) jy