Based on the information in the passage, the quote supports the author’s idea (or theme) is:
“It is high time, then, to denounce gross injustice, to compel man by the might of right to give the woman her political, legal, and social rights.” (paragraph 4) (Option C)
The theme in a text is its central message or 'central idea' that is being communicated all through the text.
Some examples of themes are given below. They are:
Learn more about themes in the link below:
https://brainly.com/question/846377