Answer:
I believe the answer is c, It weakened confidence that the US could win the war.
it is asking to explain one way that scholarly disciples not recorded in history have contributed the perspectives explained by Diamond. (who im presuming is the author)
<span>United States will take only a few minutes to have from MRBM. Medium-range ballistic missile would be launched from the Soviet Union to the US and it would only take 20 minutes.
</span><span>So if you are looking for a number answer then 3 -10 minutes would be it.</span>