Answer: The emperor did many things to unite China. Including building The Great Wall, standardizing currency and weight measures and building roads from and to many places inside the country. That being acknowledged, there are only two answers that represent those deeds.
Explanation:
The battle of Saratoga was a major turning point for the Americans
Interest in HAWAII<span> began in America as early as the 1820s, when New England missionaries tried in earnest to spread their faith. Since the 1840s, keeping European powers out of Hawaii became a principal foreign policy goal. Americans acquired a true foothold in Hawaii as a result of the </span>SUGAR TRADE<span>. The United States government provided generous terms to Hawaiian sugar growers, and after the Civil War, profits began to swell.</span>
I think it is the last answer choice