Which of the following is a power exclusively granted to the federal government?

The power to regulate interstate commerce is exclusively granted to the federal government because it involves the trade and movement of goods and services across state lines, which requires a consistent and uniform approach that a single national authority can provide. This authority is established in the Constitution under the Commerce Clause, which empowers Congress to regulate commerce among the several states. This federal regulation ensures a standardized set of rules that facilitates trade and prevents states from creating conflicting regulations that could hinder economic activity. The other options reflect powers that are typically reserved for state and local governments, focusing on local affairs such as education, law enforcement, and healthcare.