In wplms 3.4 we have added two shortcodes that you can use to show the explanation content of question based on user answer is correct or not .
Add the shortcodes like this in your question explanation settings :
shortcode has two parameters :
ques_id : it should be the id of the question in which you are adding explanation.
quiz_id : it should be the id of the quiz in which question is added .
Both these params are required to make that shortcode work .
if user’s answer is correct then content from will show otherwise content from will show .
PS : You can use shortcodes also inside the shortcode like this :