Track using quiz result:
The tutorial for track using quiz result is as follows:
Track using quiz result: Use this option to track learners based on their quiz results. If your course has multiple quizzes, you'll need to pick just one result slide to use for tracking. (This option is grayed out if your course doesn't have any result slides.)
I do have multiple quizzes in my course (not all users will take the 2nd quiz), how do I ensure that they get credit for the course if they only did 1 quiz since we are only supposed to select one.