D) My classmate's house is big, so his family must be really rich.
Answer:
You are not trying to argue, convince readers to take action, or to entertain or be funny. informational writing means to write deatails and information to give the reader a form of knowledge about a person, place, or thing.
Explanation
The answer is (To give readers specific information about a topic)
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Nothing because there’s no Question to understand
A. Books, because a common noun denotes a class of objects, i.e. books, instead of a particular object or individual.