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.

HEROES : LBVLBW :: INVEST : FRZBWX :: KIDNAP : ?

In a certain code language, 'PLIERS' is coded as MMAFJO and 'SHOVEL' is coded as FZRLFR. How will 'WRENCH' be coded in the same language?

In a certain code language, 'SPIT' is coded as ‘USKW’ and 'COPY' is coded as ‘ERRB’. How will 'MOCK' be coded in that language?

Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.

M_ _ KS _ ON _ SMO _ K _ _ _ NKS