Answer: Mary Ellen Pleasant (August 19, 1814 – January 11, 1904) was a 19th-century entrepreneur, financier, real estate magnate and abolitionist. She was arguably the first African-American self-made millionaire, preceding Madam C. J. Walker by decades. She identified herself as "a capitalist by profession" in the 1890 United States census.
Explanation:
The answer is A. a change to the constitution.
Hope i helped ^_^
I strongly believe it's the civil rights movement
