Summary
Test result setting option now has the View submission one time. When a student completes the test, they can review their answers and detailed feedback, such as which questions were answered correctly. The View submission one time option lets instructors provide students with immediate feedback, while maintaining test security.
Body
Please refer to Assessment Settings for more information.
Step 1 - Access the Test Settings.

Step 2 - Scroll down and click on hypertext in blue which is right below "Submission View".

Step 3 - Below the "Allow students to view their submission" section, click the down arrow and select "One time".

Step 4 - Below the "Submission feedback settings" turn on the settings you want your students to see and then click "Save".

Please refer to the Submission View Options article.