I would say the internet since overtime, the internet is becoming used more than books and physically notes.
I'm not sure but I think that it's C
African-Americans got the right to vote before women did, so legally, Black Women got the right to vote when all women did - in 1920. So before 1920 no women, black or white could vote - therefore pictures from 1920s likely portray women that recently got the right to vote.
In practice, Black women were harassed and denied the right to vote until 1960s, but this has nothing to do with the law (they were entitled to vote in 1920) but with the racism of the officers and administration workers.
Answer:
Although it was the law of the land for more than 300 years, American slavery was challenged and resisted every day, by its victims, by its survivors, and by those who found it morally unacceptable. Slaveholders depended on involuntary labor to keep their businesses solvent. Many enslaved African Americans defied the slave system by leaving it. The form of resistance most feared by slaveholders, however, was violent insurrection.
Explanation: