B. The Allies warned Japan to surrender or they would suffer the consequences.
Explanation:
The Potsdam declaration took place from July 17 to August 2, 1945 in Potsdam, Germany, where Britain (Winston Churchill) , the United States (Harry S. Truman) and the Soviet Union (Joseph Stalin) warned Japan to surrender within the terms stated in the declaration to avoid suffering the consequences.
This is because that particular country has special rights regarding resources produced/available in the particular land hence they can decide to charge fees for economic activites.