Answer the following question given this paragraph: 

Hydrocarbons vary greatly in size, which influences properties such as melting and boiling points. At room temperature, hydrocarbons may be gases, liquids, or solids. They are generally nonpolar and do not dissolve in water.


Q: What type of carbons may be gases, liquids, or solids at room temperature?

 Choices:

- diamonds

- amorphous

- graphites

- hydrocarbons

A:
hydrocarbons
