Answer:
A. NAACP played a significant role in settling he Pullman strike of 1894.
Step-by-step explanation:
NAACP stands for the National Association for the advancement of Coloured People, It was established in 1909. It is the oldest civil rights organisation in USA.
It was formed in response to the violence against the African Americans around the US. Its mission was to secure the educational, political, economic and social equality of the minority citizens of US and end racial discrimination.
NAACP didn't organised Pullman strike, Pullman strike was organised Pullman factory workers, they had joined American Railway Union. Pullman strike was organise on May 11, 1894, long before NAACP came into existence.