In the following question, select the related letter pair from the given
alternatives.
RLDY: SMEZ :: ?

Select the option that is related to the third term in the same way as the second term is related to the first term.
(The words should be considered as meaningful English words and should not be related to each other on the basis of number of letters/consonants/vowels in the word.)
INSECT : LARVA :: BUTTERFLY : ?