The answer would be D. The nation doubled in size with Louisiana Purchase. They also took over Florida.
They were displaced by white American settlers again.
It was after the Battle of Antietam
Answer: Dollar diplomacy of the United States—particularly during President William Howard Taft's presidential term—was a form of American foreign policy to minimize the use or threat of military force and instead further its aims in Latin America and East Asia through the use of its economic power by guaranteeing loans made. (creds to internet)
The correct answer is - A. Embracing Taoist philosophy.
The first Chinese Emperor, Qin Shi Huangdi, was a great leader and is very respected in China even nowadays for his multiple achievement, and they are indeed in abundance, but the embracing of the Taoist philosophy is not one them.
Qin Shi Huangdi is well known for making the initial version of the Great Wall so that China is protected from the Mongols and Turkic people from the north, making a standardized written language, laws, implementing standardized measurements, making one of the most amazing antique piece of architecture, the Mausoleum with the terra-cotta Army, but most importantly, his biggest achievement was that he unified the Chinese people and created one strong, big, country, to which he set up the basis for future development and progress.