Because the only way (back then) to process and make sugar farms was through manual labor. Since the Americans didn't want to put effort onto their own sugar farms, Africans were forced to do the labor part for them.
Answer:
B. freedom of the press
Explanation:
Well, to me it looks like they are petitioning. Freedom of religion usually deals with religion which I don's see anything in the cartoon to relate to that. If religion is not involved that eliminates c and d and the press I don't see relating
Hope I helped! Please let me know if I'm wrong. :)