Answer the following question given this paragraph: 

The nitrogen atom of a primary amine is bonded to two hydrogen atoms and one carbon. The nitrogen atom of a secondary amine is bonded to one hydrogen and two carbons. The nitrogen atom of a tertiary amine is bonded to three carbon atoms. Amines are typically named by a common system rather than by IUPAC guidelines. The common system for naming amines along with several examples is shown below.


Q: How many hydrogen atoms does a nitrogen atom of a primary amine have?

 Choices:

- four

- six

- ten

- two

A:
two
