Answer:
arguing legal cases in court
Step-by-step explanation:
At that time, many victims of discrimination couldn't do anything to fix their situation since they do not have any legal knowledge. Most of them were forced to swallow a bitter pill and had to either quit or just accept their situation.
NAACP fight for the equality by providing such victims with experienced legal teams. These teams will help the victims collect evidences and represent their case to the court, so the victims of discrimination will have proper compensation for their situation.
Over the time, their victories slowly added up and when public hear about the cases, many of them start to support the causes. This lead to massive push from the public to fix the law and lead to the establishment of separate but equal ideologies.