What are two ways the u.s establishes people to become a citizen? (plz )

What are two ways the U.S establishes people to become a citizen?

To become a citizen, you must either be one or the other:

1) Borned in the US: Naturalization automatically occurs if you are borned inside the US

2) Naturalization:

I) You must first fill out a Naturalization form

II) You must study and take a test on US history

III) You must live in the US for at least 3 years

hope this helps