The quiz tool has multiple feedback settings that the course instructor sets for each quiz. After submitting a quiz, you may be able to view your submission (grade and answers) immediately, after a specified time, or not at all.
To review quiz submissions, navigate to the Quiz tool in D2L by clicking "Assessments" > "Quizzes."
The information that your instructor has setup to be released will be visible to you. This may be a simple confirmation, your score, or it could contain the questions and answers. Once you've reviewed the submission, you can close the window to return to the Quiz tool.