It should be C. because interrogative pronouns are used to ask questions.
The phrase <em>with exciting plots </em>is used as D. adjective phrase, because it modifies the noun <em>books.
</em>What kind of books? - (The ones) with exciting plots. <em>
</em>
I don’t think that any of the options are correct..?
I think the answer is A) sorry if it's wrong
Answer:
Main idea
Explanation:
The main idea is the central point which is buttressed by series of details or points that support the purpose of the main idea.