Sometimes when someone is being indecisive she will change her mind many times in a short period of time. When you ask, "What do you want to do?", she'll say, "Option A, no... option B, no, wait... yes, option C." How would you respond in such a scenario?
If you feel the need to ask, "well, which is it?", then you can't update fast enough. The correct answer is to simply go with option C. That is the option most recently proposed, and barring further clarification, it represents the current consensus. There is no need to act confused.