The enlightenment had made them realize the inequality in the government. The American revolution had inspired other countries to rebel against the injustice in the government and law.
I think the letter B is the answer
He brought them a treaty, The Meiji restoration happened and because of that the Tokugawa Shogunate ended. And modernization of japan started to begin.
The song "The East is Red" is a Chinese song that became well-known during the Cultural Revolution in the 1960s. During this time period, it was considered to be the de facto national anthem of the country.
The main reason why the Communist Party wanted to popularize this song was to increase legitimacy and support for their cause. The lyrics celebrate Mao Zedong, and create an image of him that is idealistic and heroic. This allowed him to develop a personality cult around his person.