I should be a comma after "not" I believe.
It's either A or C, sorry if I'm wrong
Answer:By reading good books, speaking with older relatives, volunteering and observing little kids you can start to get a more rounded view of the world you are living.
Explanation:
The correct answer is A.<span>could not be heard above the voices in the hallway
</span>
B is a subject, C is an adverbial of reason, while D is an adverbial of manner.
