(of a rock or other material) having minute spaces or holes through which liquid or air may pass.synonyms: permeable · penetrable · pervious · cellular · holey · [more]
Answer:
Although the books are set in very different time periods, they both explore the theme of friendship and betrayal.
Explanation:
This above statement mentions opinion.
Rest of the statements are facts.
Answer: close adjective, adverb, close also means near