Following the civil war, many southern states implemented literacy tests, an eight-box law, and the grandfather clause in an effort to prevent blacks from doing which of the following? (a)voting in elections (b)gaining u. s. citizenship (c)joining white labor unions (d)owning property or their own businesses

(B)gaining U.S. citizenship.I think is the best anwser.

the world may never know

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: