Which of the following is NOT a requirement for an immigrant to become a U.S. citizen?

To become a U.S. citizen, immigrants must meet various requirements outlined by the U.S. Citizenship and Immigration Services (USCIS). One notable requirement is the ability to speak, read, and write basic English, which is essential for integrating into American society and participating in civic responsibilities. Additionally, they must pass a citizenship test that evaluates their knowledge of U.S. history and government, ensuring that they understand the principles of democracy and the rights and responsibilities of citizenship.

Another critical requirement involves maintaining residency in the United States for a specific period, usually five years (or three years if married to a U.S. citizen), which establishes the applicant’s commitment and connection to the country.

However, having a high school diploma is not a requirement for U.S. citizenship. While education can certainly enhance an immigrant's opportunity to succeed and integrate, it is not stipulated as a formal criteria for naturalization. This distinction clarifies why the first option, regarding the need for a high school diploma, is the correct answer to the question.