Texas had extended full legal rights to former slaves.
D is your answer. it gives a more specific answer than the other choices, plus it is true. Slavery has been around since Jesus time, so that's way longer than the 1500s
Eugene Delacroix painted Liberty Leading the People
That could go both ways, maybe they didnt own a plantation or have use for a slave. But they still could support it. Or, they could be completely against it, and think its completely wrong and dehumanizing, they could help runaway slaves get to the north.
C the annexation of Austria