Answer:
Explanation:
There really is no plural to this. The whole point of what James writes is that true faith will be reflected in the works (actions) a person does. It is the easy way to tell if a person is righteous. He can pronounce faith, but no one knows until we see how someone interprets his faith by what he does.
Without a list composed, i cannot give a certain answer. But a question that is too narow could be like "Where does pine grow?"
Basically it would be a question that will not require too much detail.