The correct option is A W
Try this question by substituting each letter with a number. The number according to the position in the alphabetical series.
2 7 14
4 10 +8
7 14 ?
Figure this one out yourself first.
2 + 2 = 4 4 + 3 = 7
↓+1↓+1 ↓+1↓+1
7 + 3 = 10 10 + 4 = 14
↓+1↓+1 ↓+1↓+1
14 + 4 = 18 18 + 5 = 23
Hence, 23 = W is the answer for the given question.