lizard, frog, snake turtle, lizard, crocodile octopus, snail, turtle crab, earthworm, snake
I gave my students this multiple choice question: Which group of animals contains ONLY reptiles?

Only one answer is correct among these 4 choices:
- lizard, frog, snake
- turtle, lizard, crocodile
- octopus, snail, turtle
- crab, earthworm, snake

Could you tell me which one is correct?

turtle, lizard, crocodile