You can create the answer key to your quiz in these easy steps below:
1. Click on the Commerce tab on the left and scroll to Courses.
2. Click on the course that has the quiz you want to modify.
3. Click on the Curriculum tab and then select the quiz you want to modify.
4. Click on the edit button for that quiz on the right.
5. Select the correct answer to the quiz by clicking on the radio button.
6. Click Update Question button below.