Why Is It Said That American National Interests Exist Almost

Why is it said that American national interests exist almost anywhere on the globe?

A) Because American businesses can be found almost anywhere on the globe.
B) Because telecommunications have made the globe much smaller.
C) Because American interests can be anywhere the military can access.
D) Because the reach of nuclear weapons is global.
E) Because other countries have forfeited their interests in favor of the United States.