ResponseItem subclasses do not write answers to XML
Several of the classes that override the ResponseItem abstract method generateXML have the ability to store a correct answer. None of them, however, include this in the XML representation they generate.
#3 Updated by Ryan McFall about 10 years ago
Since we aren't asking the user to specify what the correct answer is as part of the parsing process, this would be a non-trivial task to complete. Therefore I'm pushing it off to the post-prototype stage.
This is tied to the notion of rubric, and we've decided that we won't support rubrics at the prototype stage.