Great question, it is always good to ask away and get rid of any doubts that you may be having.
Based on the sentence, we can see it is mentioning an object that belongs to Willa Catha. Unfortunately, all of them can be possible correct answers based on that information so we need to check which ones make the sentence factually and grammatically correct.
Therefore the only answer that makes this sentence both factually and grammatically correct is the last answer <u>"The novels"</u>.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
It is important to understand that each of the functions we write can be used and called from other functions we write. This is one of the most important ways that computer programmers take a large problem and break it down into a group of smaller problems.