Answer: Seven Years
Explanation:
Though preceded by years of unrest and periodic violence, the Revolutionary War began in earnest on April 19, 1775 with the battles of Lexington and Concord. The conflict lasted a total of seven years, with the major American victory at Yorktown, VA in 1781 marking the end of hostilities.
First by hiding them from others, and if others were to try and confiscate their food they would fight them off with what weapons they had like spears, fire, and bow and arrows
<span>Using the bomb would shorten the war and avoid heavy casualties among invading troops.</span>
A and B is out because these undoubtedly are unique Chinese achievements. So is D. The Chinese are infamous for these things. Other achievements include gunpowder, fireworks, ect.
C is basically the answer because the chinese aren't the only race or country to do so. Many people have done it in the past before them and present in the terms of civilization. It isn't simply uniquely or originally from them.