Question

Read this line:

He wrote that "even voting for the right is doing nothing for it… A wise man will not leave the right to the mercy of chance…"

Which explains the purpose of this line?

To convey the idea that Thoreau was truly a wise man
To explain Thoreau's view that we have a responsibility to act
To imply that Thoreau felt he was above the law
To suggest that Thoreau placed a high value on human life PLS HELP