Answer:
The highlighted word should be culture
Explanation:
This is how I would look at it... If the sentence doesn't specify what culture (in this instance) adopted it and you are leaving the reader with questions then that is your vague word! Hope this helps and good luck with your classes!
Replace ran with sprinted
Answer:
Thoreau's quote expresses that individualism is of paramount importance
I think the answer is A, wait for another response though