After a verbally abusive encounter on a segregated city bus, Jo Ann Robinson became an advocate for equal rights for African Americans. She led a successful city bus boycott that gained national attention and the support of Martin Luther King Jr.
The best option from the list would be that "Public transportation made it possible for factory owners to live in parts of a city that immigrants could not afford," since the immigrant workers during this time were paid very little money and often lived in terrible conditions.
