The lcQuestionBase element was deprecated in DITA version 1.3. It was replaced with the lcQuestionBase2 element. It was originally intended as the base for lcQuestion in the learningDomain domain. This is an "abstract" element type intended only for use as a base for specialization.
See appendix for information about this element in OASIS document type shells.
+ topic/p learningInteractionBase-d/lcQuestionBase