Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left of :: is the same as that on the right side of ::?
# : ADG :: MIL : %
1
# = FLI , % = HDG
2
# = FIL , % = HGD
3
# = FIL , % = DGH
4
# = FIL , % = HDG