You are presented with the question "What needs to attract a mate in order to give birth to live young?" and the following answer choices: 
- humans
 - Jellyfish
 - mammals
 - Frogs
 - birds
 - hormones
 - insects
 - reptiles

Now knowing that an animal needs to attract a mate to reproduce and mammals are animals which raise their young on milk and typically give birth to live young, choose the best answer.


 

   mammals      