I think this is based on your opinion rather than facts so you can use what you know to give your OWN opinion シ
Yes the correct answer is "said" (b). If you get stuck on a similar question, it helps to read the sentence with each comma to hear which makes sense.
The correct sentence should be, "Have you read A Good Scent From A Strange Mountain (The book title should be either underlined or italicized. I prefer italicize though) by Robert Olen Butler?
Anne Frank wants to become a writer or journalist after the war.
2+8=10 because of you count on your fingers 8 and there's 10fingers so its 10