The adjective clause in this sentence is 'who has read thousands of books'. It is an appositive, separated from the rest of the text by commas, and has an adjectival meaning - it modifies the noun, Anthony.
A is the answer I have seen the question before
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https://gradesfixer.com/free-essay-examples/kindness/
Answer:
Richardson. Pearl meets the Richardson children, Moody, Trip, Lexie, and, later, Izzy—the problem child of the family. Attracted to their confidence and lifestyle, Pearl begins to spend most of her time with them.
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