Analyze the development of a central idea over the course of the text, including how it is shaped and refined by specific details.
Chavez mentions the Ramirez family (paragraphs 36–37) and Jimmy Caudillo
(paragraph 39). How do the stories of these people add to or refine the central idea
of the speech?

The development of a central idea over the course of the text,  including how it is shaped and refined by specific details is explained briefly in the below explanation.

Explanation:

Cesar Chavez applied the phrase radical at the commencement of his address on the page of the beginning. The term radical depicts extreme, significant, or severe. This delivers so much of the speech more dangerous, severe, and serious and addresses it to appear more significant. Main concepts are also found in the ending paragraph of a paragraph