Mr. cruncher's apartments were not in a savoury neighbourhood, and were but two in number, even if a closet with a single pane of glass in it might be counted as one. but they were very decently kept.

based on the context, a savoury neighborhood is which of the following?

poor
populated
busy
attractive

Based on the context, a savoury neighborhood is attractive

Explanation:

The context describes two extremely tiny apartments and it says that these apartments are not in a savoury neighborhood, which is a decent and acceptable neighborhood to live, then these two apartments are small but in good conditions in a neighborhood that is not very attractive or acceptable for most people.

c. is the answer to your question.

explanation:

the simple predicate of the sentence is camped.