Fact 1: The color of leaves on deciduous trees usually changes in the autumn season.

Fact 2: Common deciduous trees are the oak, elm and beech.

Given the two facts above, answer the question "Which tree's leaves change color in autumn" with the following options: 
- Fir
 - wind
 - Palm
 - blue
 - elms
 - Oak
 - Ficus
 - Aves


 

      Oak   