Based on "Civil Disobedience," what statement did Thoreau, like his modern-day successors, hope to make with his imprisonment? He wanted to show the great unfairness of the prison system.
He wanted to prove himself as a martyr for his cause.
He wanted to suggest that one should be willing to go to great lengths for a belief.
He wanted to suggest that imprisonment was the only valid form of political protest.

He wanted to suggest that one should be willing to go to great lengths for a belief

Explanation:

Based on "Civil Disobedience," the statement that Thoreau, like his modern-day successors, hoped to make with his imprisonment was to suggest that one should be willing to go great lengths for a belief.

Thoreau like many other activists before him had to endure imprisonment and unfair treatment for a cause he believed in, without backing down.

you need to post the passage so we know what you’re talking about

i'm not sure i'm so sorry i will see what i can do