Thoreau reasons in this paragraph that a man isn't meant to blindly follow the majority of the rules because he has a conscience to guide his actions.
This refers to the use of words to communicate an idea that has a subject and predicate.
Hence, we can see that from the given sentence, there is a description of Thoreau and how he states that man should not blindly follow rules, and option A best completes it because man has a conscience.
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