Mavisdu1017
Yes, don’t you think C means sales of a book will not be influenced by the review? cuz people Won’t read reviews before they buy the book. So why irrelevant?
I think you're reading C to mean something that it doesn't say. C says people will read a review if they like a book. But C does not say people
only read reviews after they read and like a book. There can still be lots of people reading reviews before deciding whether to buy and read a book.
That said, I don't think this question deserves any attention, since even the question itself (it's not an assumption question) is flawed.