Answer the following question given this paragraph: 

When nonmetals react with one another, the product is a molecular compound. Often, the nonmetal reactants can combine in different ratios and produce different products. Sulfur can also combine with oxygen to produce sulfur trioxide.


Q: Sulfur can combine with oxygen to produce what?

 Choices:

- sulfur bioxide

- sulfur dioxide

- sulfur oxide

- sulfur trioxide

A:
sulfur trioxide
