You are presented with the question "what can be changed from smooth to compacted by physical force?" and the following answer choices: 
- Roads
 - dirt
 - h2o
 - soils
 - foil
 - wood
 - oxygen
 - hair

Now knowing that crumple means change shape from smooth into compacted by physical force and crumple the foil then carefully reopen it, choose the best answer.


 

     foil    