Supreme Court decisions interpreting the Commerce Clause have held that it sets up three categories of actions in which Congress may engage. Which of the following is not one of those categories?

Multiple Choice

• Regulating the channels of interstate commerce
• Regulating and protecting the instrumentalities of interstate commerce, as well as persons or things in interstate commerce
• Regulating activities that substantially affect interstate commerce
• Regulating substantial intrastate commerce, regardless of whether it affected interstate commerce