The 1972, 1979, and 1987 missile reduction <span>agreements between the United States and the Soviet Union are examples of the foreign policy of "detente," since these were agreements meant to benefit both nations, and indeed the world. </span>
Ratifying amendments is a an example of a reserved power that is exclusive to the state governments. In the Article Five, which is part of the Constitution, shows about ratifying of new amendments and is referred to as "reserved powers of the states".
The answer would be choice C.
Yes, Shi Huangdi brought an end to the period of Warring States and created a unified China, both culturally and politically. Shi Huangdi may have unified the area politically and socially with legalist policies and standardization, but he did so by destroying culture using oppressive tactics.