Overall, Thoreau wanted to prove that not everyone will easily flow with the rules of society. As a result, he calls the people who go different paths than the ones of society "different drummers."
In conclusion, your final answer should be A.
<span>A parallel construction refers to the fact that the same form of a word or phrase is used in all of its examples. So, having this in mind, the correct answer is A. being happy, being sad, being depressed, because all of these constructions have a gerund being + an adjective. The other examples aren't as uniform as the first one is, which is why they are not parallel. </span>
To not worry about everything else going on in their life but to focus and concentrate on their work while at school
old english, because of the time period
