Not long after that effort failed, Mr. Streeter tried to fight segregation again. The family often went to the movies on Sunday after church. "[M]y daddy decided that we weren't going to sit on the back of the bus that day. He got us and he sat us up in the front . . . ," Arnetta said, "The bus driver pulled over . . . and he told my father that either he [her father] was going to move back or he [the driver] was going to call the police . . . We were crying . . . All we knew was that the bus driver was going to call the police on our daddy." An older black woman on the bus chastised Arnetta's father, saying, "You don't do anything like that when you have children with you." Once again, Mr. Streeter gave in to his children, to the driver, to the older woman, and to the city's segregation laws. He moved his family to the back of the bus.

How does the author use third-person narration in this excerpt?

to describe the Streeter’s weekend routine
to explain the injustice of local police efforts
to reveal the challenges of social activism
to show Arnetta’s pride in her father