You are presented with the question "What is usually chosen in evolution?" and the following answer choices: 
- common traits
 - Plant reproduction
 - advantageous systems
 - undesirable traits
 - Animal survival
 - competition
 - mysterious sytems
 - Earth revolving around the sun

Now knowing that evolution occurs by a process called natural selection and natural selection only selects functionally advantageous systems, choose the best answer.


 

   advantageous systems      