Firstly, this is a second-hand question. I was asked this and I know absolutely nothing about CBM, nor does the documentation enlighten me terribly much.
The assertion is that it can only be used with True/False questions - is this true?
If it is true, why? What's the barrier to it being used with (in particular) a multiple-choice type question?
AND... (looking at https://tmedwin.net/cbm/moodle/download/)
...this implies that patches to core code are required to use this functionality. Is this correct (shock/horror )?