I thought of this idea this morning to produce a video on how to create a multiple choice, single answer question with unique feedback messages for each answer selected by the learner. I started to put this together and I was convinced I had done a video on this before. I was surprised that I haven't because while this is a relatively unknown feature in Adobe Captivate, it's something that I try to use whenever possible. The reason is that it not only simulates a facilitator answering a question much in the way you would expect them to do so during instructor led training, but it also provides for the opportunity to create a foundations for scenario based learning with branching.
Anyway, take a look at the process and hopefully you can use this technique to improve your eLearning knowledge checks and quiz questions.