The answer is D they felt they had a moral obligation to make change
A writer picks sentences that are related in some way.
The verb is "trudged".
It's the past simple form of the verb "to trudge" which is a type of a walk, usually slow and heavy as if you have weights on yourself.
Answer:
Yes, they should.
Explanation:
It teaches students the importance of helping others, even if you don't expect something in return.
