In the REST API multiple choice questions have responses that are labeled with answer id's. To get at them, I'm going through a very circuitous path. First I get course submissions from a student that has actually taken the quiz/survey. Then I look at the submission_history, and then submission_data. Now I have a response that contains the question id. With that question id (and the quiz id) I can then query a single quiz question. The response contains an "answers" array. The answer array contains pairs of answer ids and the corresponding text.
This is quite inefficient but I can't seem to find out a more direct way of getting at the answer id <-> text mapping. Does anyone know of a more direct way?