Which quotation from the speech best develops the central idea that african americans have been intentionally blocked from voting in elections?

"every device of which human ingenuity is capable, has been used to deny this right."

"our fathers believed that if this noble view of the rights of man was to flourish it must be rooted in democracy."

"he shall choose his leaders, educate his children, provide for his family according to his ability and his merits as a human being."

"this was the first nation in the history of the world to be founded with a purpose."