What is Title 8 of the United States Code primarily concerned with?

Title 8 of the United States Code is primarily concerned with immigration law. This title encompasses a wide array of statutes and regulations governing issues related to immigration, citizenship, and naturalization processes. Specifically, it outlines the legal framework for both non-citizens entering the United States and the rights and responsibilities of immigrants already residing in the country. This includes provisions on visas, asylum, deportation, and refugee status, among other immigration-related matters.

While employment law, taxation law, and criminal law are critical areas of legal study, they fall under other Titles in the United States Code. Employment laws can typically be found under Title 29, tax laws under Title 26, and criminal laws primarily under Title 18. Thus, the clear focus of Title 8 on immigration demonstrates why it is the correct answer among the choices provided.