Let's set correct responses from each  question by clicking on "correct." Add some responses for the questions  that have less than three responses. And set "correct" respectively,  for one response in each question. Click on preview, and enable the  "Show correct answers" option,   which highlights in yellow correct answers. You can select one correct  answer or multiple one's  And as you see here, multiple answers to  the same question are considered valid.

Set a Question Score

Queezed - Make & generate unique quizzes into PDF | Product Hunt