That's a stupid question

I am now trying to study for the DATS. I had a chem question that I asked Dr. G. After reading the question she said that is a dumb question. That made me feel better because if it was something that she felt that she had taught us I would have felt embarrased. Instead I felt justified that I hadn't understood the answer and she then explained the question and the answer. I love Dr. G and I don't know what I am going to do next year:(