Thurgood marshall
a. signed the southern manifesto
b. was a lawyer for the naacp
c. was the first black justice of the supreme court
d. argued plessy v. ferguson before the supreme court

The correct answer is letter C. Thurgood Marshall was the first African-American justice of the Supreme Court. He was a successful lawyer that argued well before the Supreme Court for the cause of desegregating public schools. A lot of presidents nominated him for his terms in office because of the tenacity he has in performing court duties.