I would point out that in question period questions may be asked but should not be of a hypothetical nature. Members will note at that time the Chair did not intervene and did not rule on whether it was a hypothetical question.
We all accept in this House that ministers have the right to answer a question or not to answer a question and take whatever form when they do answer a question to do so. In this case, if a question is posed it is up to a minister or a member of the government to answer as he or she sees fit.
If I judge a question to be hypothetical, as your Speaker I will intervene. I cannot control the response and for the most part I cannot control the question.