Final answer:
A person must have an understanding of U.S. history and government for naturalization to ensure they understand the responsibilities of citizenship, can actively participate in the democratic process, and uphold the principles of the Constitution. The correct answer is option D.
Step-by-step explanation:
Understanding U.S. history and government is crucial for naturalization because it ensures that the person understands the responsibilities of citizenship. Part of becoming a U.S. citizen is being able to actively participate in the democratic process, contribute to the community, and make informed decisions on matters of public concern. Knowledge of how the government functions, key historical events, and the rights and responsibilities of citizens equips new citizens to engage in civic life more effectively. During the naturalization interview, a USCIS officer will test the applicant's knowledge of these subjects, requiring the applicant to answer correctly at least 6 of the 10 questions asked.
Additionally, by testing for an understanding of U.S. history and government, the process ensures that new citizens share a foundational level of knowledge that is considered essential for the cohesion and strength of the national community. It is also a means by which applicants demonstrate their attachment to the principles laid out in the U.S. Constitution and their readiness to uphold the laws of the country.