You may want to ask a question that has multiple correct answers. If so, you can use a list to display choices that your students can then list in the entry box.
Choice specification should include:
\medskip {\parindent=20pt \item {\bf A.} Choice A text goes here. \item {\bf B.} Like the multiple choice template, you can put equations here too using the dollar signs. \item {\bf C.} Here's the third choice. } \medskip
At it's most minimal the code portion should follow this format:
function js_answer(){ /* global list ans1 */ ans1 = "A,B"; }