You can view the responses and results for all the people who have submitted your quiz, in the Submissions section under the Results tab.
This is what the responses section looks like, depending on your quiz configuration:
You will find the following details in this section:
The names of people who have submitted your quiz.
The number of correct and incorrect answers for their submission.
Time and date of submission.
Proctoring data, such as Tab switches , Number of times full screen exited and the webcam Snapshots if the respective settings are enabled.
Click on one of the entries in this list, to open up the submission detail view. It will list out all the questions and answers that were marked by the respective person.