Fact 1: Sharpening an object causes that object to change shape.

Fact 2: An object is an item in the real world.

Given the two facts above, answer the question "What does sharpening an item do?" with the following options: 
- changes shape
 - alters smell
 - changes color
 - Relieve pain
 - focusing a lens
 - maintains shape
 - duplicate itself
 - lowered energy cost


 

 changes shape        