I'm a designer trying to add language tags for a foreign language course, and I can add them simply to the quiz instructions, quiz questions, and to the multiple choice answers. However, there is no "edit" or HTML option for the answers to matching or fill-in-the-blank questions. I can only add or delete them, it would seem.
Hi there, @MaryAnnMcFarlan ...
Thank you for clarifying that you are using current/classic quizzes. Unfortunately, both of those types of questions do not have the Rich Content Editor available for correct answers. You only have a simple text box to type in the correct answers.
Sorry that I don't have better news for you, but I hope this has helped to answer your question.