How did the Reagan administration contribute to the end of the Cold War?

A. by letting the Strategic Arms Limitation Treaties expire

B. by taking a position of peace through strength

C. by formulating the Strategic Defense Initiative

D. by meeting with Gorbachev to reduce armaments

Option: C. by formulating the Strategic Defense Initiative.  

Explanation:

Reagan showed opposition to communism and promoted a strong military with supportive of the MX missile system and the Strategic Defense Initiative program. President Reagan carried military buildup because he believed that the Soviet Union could not manage to contribute as much on defence as the United States could. The Strategic Defense Initiative was a U.S. missile defence program played a very prominent role in the United States and Soviet relations in the 1980s and is often attributed with assisting end the Cold War.

the answer is a glaciers carved a large valley that later flooded and became puget sound

these acts divided the south into five military districts.