Answer:
The anger black people felt.
Step-by-step explanation:
In her autobiography "My Story", Rosa Parks writes about her unending struggle for the rights of the blacks and the struggles that she along with others had to endure. She was famous for her refusal to give up her seat for a white men in a segregated bus in Montgomery, Alabama which sparked controversy over the rights of blacks. This event became the turning point for not only Rosa Parks but for the blacks too.
In the given excerpt from the autobiography, she angrily writes about the humiliation and disgrace that the blacks have to endure, unlike the whites who seem to have full liberty over everything. She laments the "humiliating (situation of) having to suffer the indignity of riding segregated buses twice a day, five days a week, to go downtown and work for white people". And through her use of the first person narrative voice, she represents the anger that the black people feel and have within them.