You are presented with the question "what plays to learn how to behave?" and the following answer choices: 
- opossums
 - humans
 - people
 - fish
 - exercise
 - ants
 - h2o
 - catabolism

Now knowing that playing is one way mammals and other animals learn how to behave and opossums are a type of mammal called marsupials, choose the best answer.


 

 opossums        