DG 24 is related to WT 20 in a certain way based on the English alphabetical order. In the same way, YB 18 is related to BY 14. To which of the following is QT 30 related, following the same logic?

DG 24 → WT 20

YB 18 → BY 14

QT 30 → ?

Logic: Opposite letters are given, and the number is decreasing by 4.

​DG → WT → D & G are opposites → W & T, 24 − 4 = 20
YB → BY → Y & B are opposites → B & Y, 18 − 4 = 14

Similarly,
​QT → ? → Q & T opposites → J & G, 30 − 4 = 26​​