In the following question, select the related letter pair from the given alternatives.
DGKX: FIMZ :: ?

Correct option is D

logic: The pattern alternates +2 for each letter.
DGKX: FIMZ:
D → F: +2
G → I: +2
K → M: +2
X → Z: +2
Now, applying this pattern to the given options:
Option (a) WXZB: MLUD
W → M: -10 (not a +2 shift)
X → L: -12 (not a +2 shift)
Z → U: -5 (not a +2 shift)
B → D: +2 (this matches the +2 shift)
Option (b) XCBA: TSBO
X → T: -4 (not a +2 shift)
C → S: -10 (not a +2 shift)
B → B: No change (not a +2 shift)
A → O: +14 (not a +2 shift)
Option (c) BLRO: AYWZ
B → A: -1 (not a +2 shift)
L → Y: +13 (not a +2 shift)
R → W: +5 (not a +2 shift)
O → Z: +11 (not a +2 shift)
Option (d) FVKG: HXMI:
F → H: +2
V → X: +2
K → M: +2
G → I: +2
So, the pair FVKG: HXMI follows the same +2 pattern as DGKX: FIMZ, making (d) the correct answer.