I would say that these lines suggest a sense of space with resonating power. You can see that they speak of freedom and liberty, and the vastness of space in the forest and the desert.
The correct answer is C.
Thoreau wrote "Civil Disobedience" to express his discontent about the government control over its citizens.
In the essay, Throreau argues that people should be allowed to act according to their believes, rather than be obliged to follow laws dictated by the mayority. This is because he believes that, even though the majority is the strongest group, it does not mean that they always have the right point of view.