Final answer:
The primary weakness of the passage is that the claim is too subjective. Option A.
Step-by-step explanation:
The primary weakness of the passage is A. The claim is too subjective. Thoreau argues that the best type of government is one that is subordinate to the people, which is a subjective claim because what one person considers the best type of government may differ from another person's opinion.
The chosen quote does support the claim by emphasizing the importance of individuals expressing their preferences for the kind of government they respect, but it may not directly prove that a government subordinate to the people is the best type.
So option A.