Final answer:
The correct answer is option b. CBP and USCIS.
Step-by-step explanation:
The Immigration and Naturalization Service (INS) was an agency of the U.S. Department of Justice and was tasked with handling legal and illegal immigration and naturalization. It was dissolved in 2003, and its functions were transferred to three agencies within the newly formed Department of Homeland Security (DHS). The correct answer to which two agencies currently handle the duties once managed by the INS is b. CBP and USCIS.
The U.S. Citizenship and Immigration Services (USCIS) is responsible for processing immigrant visa petitions, naturalization petitions, and asylum and refugee applications, while the Customs and Border Protection (CBP) is tasked with protecting U.S. borders and facilitating legal travel and trade.
Issues of Immigration and border security are both complex and critical components of U.S. policy. While individual states such as Arizona and Texas have sought to implement their own immigration policies, the U.S. Constitution grants the power to regulate immigration and naturalization exclusively to the federal government. As such, federal laws take precedence over state laws in this matter.