Debate of smartphone (should smartphone be banned in class?

Graveyards

We can figure this out simply by observing the way the sentence was written. The part "...and being there brought comfort." is an easy way to determine the answer. 'There' being the key word. This indicates that what we are talking about is a place. And looking at the options, graveyards are the only place. So that would be your answer.

Hope this helps! Good luck.