Answer:
Parks joined the National Association for the Advancement of Colored People and was elected to Secretary in the Montgomery branch. However, she grew up in a harsh society dictated by the Jim Crow laws in Alabama which included segregation of white people from coloured people in public places, on buses and trains, even school buses were not provided for black children going to school. Education for black people was woefully underfunded.
At the time of Park's protest, the bus laws segregated blacks from whites, reserving the front section of the bus for white people and the back of the bus for the black customers. However, black people were 75% of those who were using the bus transport. When the white section was filled, black people were either asked to move to the back of the bus, stand or even leave the bus, despite having paid a fare.
On Thursday, 1st December, 1955, Parks boarded her bus home after working for the entire day. When the bus became filled, the white section was moved and Parks was asked to give up her seat. When she refused, the bus driver informed her that he would have to call the police if she didn't get out of the seat. Rosa was arrested and charged with Chapter 6, Section 11 segregation law of the Montgomery City code. Recalling the incident in later years, Parks declared: "I only knew that, as I was being arrested, that it was the very last time that I would ever ride in humiliation of this kind..."
Explanation: