Add explanations for your question.

After you've created the questions, write your explanation in this field.
If you want to add explanation files for your question, select the Upload Explanation button.
You will be on this page. You can attach images, PDF files, audio, and video for explanations from your computer or a cloud storage service like Dropbox or Drive.
If you prefer to use a YouTube or Vimeo video, click the Embed video option.
Now, paste the video URL into this area and press the Save button.
Your question explanations are now prepared. Click the Manage button to rearrange the slides or remove any of them.
After you've uploaded the files, select the Preview option to see how the explanation will appear.
By following these steps, you can add explanations for your questions.

Once you've added a question to your quiz, you can write or upload an explanation. Once your learner has completed the test, they will be able to view the explanations.