The text referenced here is The Coeur d'Alene Miners' Uprising. The central idea is that the miners took great efforts to protect worker's rights. The correct answer thus, is C.
<h3>How to determine the central idea of a text</h3>
The central idea of a text is usually stated at the beginning of paragraphs.
It is also stated in the concluding part of the sentence of a paragraph as a summation of the information presented in the body of the main text.
See the link below for more about Central Ideas of a text:
brainly.com/question/1914191
America and france had joint occupation over germany
