Which summary best synthesizes the information in the four Einstein readings?
a. pacifist who opposed all war, Einstein worked unceasingly to persuade the world’s nations to give up their weapons.
b. After spurring U.S. efforts to build an atomic bomb, Einstein worked to eliminate the arms race as a cause of war.
c. Einstein was horrified to think that Hitler might build an atomic bomb, so he wanted the United States to make one first.
d. Einstein strongly opposed the cold war and thought that both the United States and the Soviet Union should disarm.