Correct option is C
Given:
Series: WOM, CVS, ICY, OJE, ?

Logic:
first , second and third letter is increased by 6, 7 and 6 respectively.
Facts & Explanation (Operation-wise):
First letters:
W → C → I → O → U (+6 each time)
Second letters:
O → V → C → J → Q (+7 each time)
Third letters:
M → S → Y → E → K (+6 each time)
Final Answer: UKQ
Final Correct Option: (A)