You are presented with the question "How to mammals nourish young?" and the following answer choices: 
- nectar
 - organ
 - fur
 - H 2 O
 - solitude
 - milk
 - birth
 - ignorance

Now knowing that hair is a fiber that is found only in mammals and mammals are animals that have hair, are warm-blooded, and nourish their young with milk, choose the best answer.


 

      milk   