Select the missing pair (Third letter group : Fourth letter group) which is related in the same way as the first letter group is related to the second letter group and the fifth letter group is related to the sixth letter group.
HABS : NZHH :: ? :: FRLW : LIRD
1
CALK : IZRQ
2
LRBD : RIIW
3
GTIV : MGOE
4
AMKW : GNQC