When did Japan surrender?

Aafter the first atomic bomb was dropped
Bthe day the Soviet Union invaded Manchuria
Cthe day after Germany and Italy surrendered
Da few days after the second atomic bomb was dropped

What was the Manhattan Project?

Athe last Japanese military offensive
Ba secret U.S. project to develop nuclear bombs
Ca Soviet Union military plan for combat against Japan
Dan agreement between the United States and the Soviet Union regarding Eastern ...