Final answer:
Naturalization is the legal process through which individuals who are not born in the United States become citizens. The concept of naturalization means that people born in other nations who complete a legal process may become citizens of the United States.
Step-by-step explanation:
Naturalization is the legal process through which individuals who are not born in the United States become citizens. Option B, People born in other nations who complete a legal process may become citizens, best describes the concept of naturalization. This process includes meeting specific criteria and going through an application and interview process.
Foreign citizens who want to become U.S. citizens must go through the naturalization process, which requires meeting certain criteria. These criteria typically include being a permanent resident, residing in the United States for a certain period, demonstrating knowledge of U.S. history and government, and passing an English language and civics test. Once these requirements are met, individuals can apply for naturalization and, if approved, become U.S. citizens.