Answer the following question given this paragraph: 

Flammability is the ability of matter to burn. Wood is flammable; iron is not. When wood burns, it changes to ashes, carbon dioxide, water vapor, and other gases. After burning, it is no longer wood.


Q: The ability of matter to burn is called?

 Choices:

- solubility

- eccentricity

- unpredictability

- flammability

A:
flammability
