sometimes a person thinks that the answer to an English question will be "Yes," but that person isn't right. How do you answer the following?
(A) Question: don't you have one?
Answer: No, I don't (B) Question: don't you have one? Answer: Yes, I do
(C) Question: don't you have one?
Answer: Yes, I don't
(D) Question: don't you have one?