The United States advocated the Open Door policy because
o it wanted to control all trade going in and out of China
o it wanted all foreign powers to have the same chance to trade with China
0 it wanted to help China remain sovereign.
DONE

It was all foreign powers to have the same chance to trade with China.

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation: