I would answer the question the way the book presents it ... but I would write a comment next to it saying, "this is what the book says, but it is wrong". That way you do not implicitly profess heresy. Alternatively, you can write a disclaimer at the top of the test indicating, "I am answering these questions in accordance with the book, and these answers do not represent my own opinions, as I disagree with many of them."
It's unjust of them to penalize you for rejecting their heresy.