Final answer:
The central idea in paragraph 12 is conveyed through vivid descriptions of the harsh conditions faced by the narrator, showing her sacrifices for fighting unfair working conditions. The use of such details is consistent across various literary excerpts, illustrating physical and psychological hardships that underscore resilience in the face of adversity.
Step-by-step explanation:
The central idea in paragraph 12 is developed through the use of vivid imagery and harrowing details to illustrate the extreme and harsh conditions the narrator endured. The details of being confined in a dark, cold, and damp cellar, wearing the same clothes day and night, and combating sewer rats with a beer bottle, serve to highlight the sacrifices the narrator made in the struggle against unfair working conditions. This narrative technique emphasizes the severity of the situation and the resilience and determination of the narrator, which align with the broader theme of fighting against the odds for the sake of a just cause.
Details from the various passages mentioned also paint a picture of the physical and psychological toll of inhumane conditions, whether it be the extreme labor conditions described by Frederick Douglass, the confinement and perceived sanctuary described by another character, or the unsanitary environment depicted in Upton Sinclair's narrative of the meatpacking industry. These descriptions serve to develop the idea that those who endured such circumstances often faced a diminished quality of life, and yet some found within themselves the strength to continue fighting for change.