It should be A. the abolishment of slavery because of slave uprisings in Haiti they abolished slavery in 1793 and because of the Civil war in the US we abolished slavery in 1865
The reconstruction period had generally good ideas which were exploited by bad people and who turned it all upside down. The idea of reconstruction was to integrate African-Americans into the society and protect their rights and enable them to educate themselves and become sophisticated and emancipated members of the society.
During the gilded age, the focus switched form social to economic reforms and because of this the reconstruction ended and many southern states reverted to their original racist ways. This is why it's called the gilded age, it only looked like everything was great but it was bad at its core, like gilded items which only look gold.
Answer:
Colonial opposition to British attempts to impose greater control over the colonies and to make them repay the crown for its defense of them during the French and Indian War.