In 1833, South Carolina repealed nullification after.
a. Jackson sent troops to South Carolina b. being unable to win support from other states
c. Congress abandoned the protective tariff
d. calling for a special convention

pan-africanism or pan-africanism is a political, philosophical, cultural and social movement that promotes african twinning, the defense of the rights of african people and the unity of africa under a single sovereign state, for all africans, both africa as of the african diasporas.

explanation:

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in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)

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explanation: