You are presented with the question "Which tree's leaves change color in autumn" and the following answer choices: 
- Fir
 - wind
 - Palm
 - blue
 - elms
 - Oak
 - Ficus
 - Aves

Now knowing that the color of leaves on deciduous trees usually changes in the autumn season and common deciduous trees are the oak, elm and beech, choose the best answer.


 

      Oak   