In what way did frederick douglass contribute to the abolitionist movement?
a: by founding an anti-slavery society
b: by bringing lawsuits against slaveholders
c: by making public lectures across the nation
d: by encouraging slaves to fight for their freedom

the historians cited in the article all agree with one another about the cause of the civil war. despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the civil war. the fact that all these historiansgenerally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of howard university, clemson university, and the university of colorado.

i have to go with a for this one

is there a year set? the question is incomplete