Once you complete the quiz, you’ll see a results page from which you can easily review any question. To check the correct answers and explanation, click on "view questions.
Keep in mind, only challenging quizzes have explanations, others quizzes have no explanation. Quizzes that are related to the lesson have no explanation because they check your understanding of the lesson.
If you don't know how to arrive at the correct answer, consider watching the video lesson again.