You are presented with the question "what breathe with gills as larvae and lungs as adults?" and the following answer choices: 
- fish
 - snakes
 - frogs
 - salmon
 - breathe
 - bats
 - lungs
 - animals

Now knowing that most amphibians breathe with gills as larvae and with lungs as adults and frogs are amphibians, iguanas and snakes are reptiles, choose the best answer.


 

   frogs      