Q1. The 25% secondary tariff threat on countries 'doing business with' Iran, announced in January 2026, was issued exclusively under the authority of which one of the following?
- A. The Office of the United States Trade Representative under Section 301 of the Trade Act, 1974
- B. The Office of Foreign Assets Control of the U.S. Department of the Treasury
- C. The Executive Office of the President of the United States
- D. The U.S. Department of Commerce's Bureau of Industry and Security