People have been asking about my multi-choice quiz tutorial (flashbynight.com/tutes/mcqquiz/) and how to add more than three options.
I have developed a version where you can have as many options as you like. See here for an example where the first question has three options, the second has four and the third has two: http://flashbynight.com/tutes/mcqquiz/example2 All you need to do is to add options in the JSON file, which you can open in a text editor.
Download the sourcefiles here: http://flashbynight.com/tutes/mcqquiz/example2/source.zip