Fact 1: Aggression is behavior that is intended to cause harm or pain.

Fact 2: Macaques are known for their aggressive behavior.

Given the two facts above, answer the question "what intends to cause harm or pain" with the following options: 
- macaques
 - complex
 - A drug.
 - A computer
 - humans
 - animals
 - an object
 - Toxicity


 

 macaques        