To become a citizen of the United States, you must

A. have lived in the United States for at least six months.

B. be at least 21 years old.

C. pass an English and government test.

D. file a request form in a federal court.

To become a citizen of the United States, you must c) pass an English and government test. You can either become a citizenship through birthright or naturalization. Birthright is when you are a citizen because you were born in the territories of the United States and naturalization is a process where an immigrant applies for citizenship is accepted.