Final answer:
The correct answer is c. A literacy and language proficiency test. To obtain citizenship in the United States, an applicant must pass a test of knowledge about US government and history, have legal residence for at least 5 years, and take an oath of loyalty. However, a literacy and language proficiency test is not a requirement for citizenship.
Step-by-step explanation:
The correct answer is c. A literacy and language proficiency test. To obtain citizenship in the United States, an applicant must pass a test of knowledge about US government and history, have legal residence for at least 5 years, and take an oath of loyalty. However, a literacy and language proficiency test is not a requirement for citizenship.