Under the Commerce Power, Congress may regulate which of the following?

• A. Local intrastate activity with no effect on interstate commerce
• B. Channels of interstate commerce
• C. Purely local personal choices with no impact on commerce
• D. Foreign policy decisions of states

Answer: (B)

The key idea is that Congress can regulate channels of interstate commerce—the routes and means by which goods and people move between states. These channels include highways, railways, waterways, airways, and even the internet when used for cross-state commerce. Regulating these channels helps keep interstate trade flowing smoothly, so Congress may regulate them even if the conduct being regulated occurs within a single state, as long as it relates to interstate commerce.

That’s why the correct option is channels of interstate commerce. Local intrastate activity with no interstate effect isn’t covered unless there’s a substantial effect when aggregated with similar activities. Purely local personal choices with no impact on commerce aren’t within Congress’s scope under the commerce power. Foreign policy decisions of states fall outside this power, as foreign policy is primarily a federal concern.