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.
The answer seems to be answer choice c
Simple because there is very little detail.
but it wouldnt be fragment because its not just "we want to go swimming." or "but we can't find our bathing suits"
Answer:
A group of scientists completes a study and writes it up in the form of an article.
