Answer:
On July 4, 1776, the thirteen colonies declared themselves free and independent states at the Second Continental Congress by signing the Declaration of Independence. The Revolutionary War ended at Yorktown in October 1781, when Americans captured the British army there.
Explanation:
The answer is Pan-Slavism
The best option from the list would be that "<span>b. The United States began to build up its military and to stockpile weapons," since this was part of the inevitable "Arms Race" that took place between the US and the USSR. </span>
