Tagging questions in Question Bank

Hello; I have a client that wants a 20 question assessment, pulling from a Question Bank with about 100 questions.  The 100 questions will address about 15-20 subtopics.  After the score slide, he would like a remediation slide(s) showing the correct formula and general process to answer the missed questions.

So is there a way to tag each question with its subtopic and the performance for each subtopic?

Thank you!