Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.
AZBZ ∶ CYDY ∶∶ EXFX ∶ GWHW ∶∶ IVJV ∶ ?
1
IJKV
2
KVLV
3
IUJU
4
KULU