PART A: Which statement best expresses the central idea in the text?

A
The decision of Plessy v. Ferguson was finally overturned due to the constant boycotting of black and white citizens throughout the South.
B
While segregation in the South had largely ended, negating the Plessy v. Ferguson doctrine made the end of racial segregation official.
C
The overturning of Plessy v. Ferguson ended racial segregation on transportation, but allowed other forms of segregation to continue.
D
Plessy was brought to an end through cases challenging the validity that racially segregated institutions and services were equal.