Under the Antiboycott Law, U

Under the Antiboycott Law, U.S. companies are forbidden to participate in any unauthorized foreign boycott. Which of the following situations brought about the Antiboycott Law in the U.S.?

A) The boycott of Cuba by the U.S.
B) The boycott of South Africa by the world community.
C) The boycott of Israel by the Arab League.
D) The boycott of China by the United States.
E) The boycott of the U.S. by the U.S.S.R. (the wheat embargo) .