Final answer:
The best evidence for the connection between Pullman porters and Rosa Parks would be a line that illustrates the Black community's organizational readiness for the Montgomery Bus Boycott, which was influenced by the communication networks established by Pullman porters.
Step-by-step explanation:
The connection between Pullman porters and Rosa Parks on the broader narrative of African American resistance against segregation and racial injustice in the United States. The Pullman porters, being majority African American, played a significant role in facilitating travel and communication among Black communities, inadvertently laying groundwork for collective actions like the Montgomery Bus Boycott.
Rosa Parks' notable act of refusing to give up her seat occurred in the context of a community ready to challenge segregation. The best line from the text that connects Pullman porters and Rosa Parks would likely discuss the larger community's readiness for action and the Pullman porters' influence in that community. A strong candidate for such evidence could be the mention of the African American ministers and community leaders' decision to organize the boycott, sparked by Parks' arrest. This indicates the widespread support and organizational readiness within the Black community, of which Pullman porters were an integral part.