In the following question, a group of letters is given. The letters of each group are related with the letters of the same group by some Logic/Rule/Relation. From the given alternatives, select a group of letters which follows the same Logic/Rule/Relation.
(XG, CK, HO)
1
(LT, QX, VB)
2
(QS, VW, AB)
3
(DN, HR, MV)
4
(AF, FJ, KM)