Secretary of State John Foster Dulles supported a foreign policy strategy ofa. going to the brink of war to halt the Soviets' efforts to extend their territory any farther.b. an all-out nuclear assault on the Soviets if they even looked as though they were about to encroach on the free world.c. talking with Soviet officials to make sure the Soviet Union and the United States understood each other.d. rotating diplomatic personnel between the Soviet Union and the United States so the two nations could better understand each other's foreign policy.