Suisse Internationale, a Swiss maker of athletic equipment, enters into a price fixing agreement with Total World Sports, a U.S. wholesaler of Suisse's products. U.S. courts will apply U.S. antitrust laws if

a. the agreement was made in Switzerland.
b. the agreement was made in the United States.
c. the price fixing has a substantial effect on U.S. commerce.
d. the Swiss government agrees to be sued in the United States.

C