Select the word from among the given options that is similar to the given words and hence belongs to the same group.

Crocodile : Snake : Iguana : ?

Chameleon

Crocodile : Snake : Iguana : ?

The logic followed here is :.

Crocodile : Snake =

Crocodile and  Snake both are reptiles

Similarly

Iguana : ?

Iguana and Chameleon both are Lizards

Hence Chameleon is correct answer