Matt, the format you're describing is sometimes called a "shooting gallery" quiz. For each category of answers, you need to have the clue (the prompt announcing the category) appear as many times as there are answers in that category, and provide a different correct answer as the first-listed answer each time, then follow each first-listed answer by all the other answers in that same category, separated by forward slashes, so they serve as alternate answers.
This will be much clearer if you look at the attached JPEG, where I've taken a screen shot of how the Data page would look for a sample quiz.
The critical point is that each correct answer must appear on exactly one line as the first-listed answer, or else there won't be a button labeled as that answer. The decoys should be listed at the end, with the "ee" marking them as bonus answers.
In the Options page, the only two items that should be checked are "Use hints and force answers in order" and "Put answers in alphabetical order." (OK, the second one isn't mandatory, but a quiz is almost always better if buttons are alphabetized.)
Finally, I just threw that mock-up together to illustrate the data formatting, but you can improve the look of the clues by including checkboxes, stars, or some thematic symbol to remind the player how many items are in that category and how many have already been selected. See the following quizzes for a couple of well-designed examples: