Answer:
A social worker in a large city.
Step-by-step explanation:
Although Mr. Utterson is a lawyer, and not a social worker, we do know that he lives in a large city. We also know that Mr. Utterson is a person who does not like to gossip and does not criticize the decisions of other people. In fact, he is often willing to help them even when he does not know whether the people have behaved in a moral way or not. This is more similar to a social worker than to any of the other options.