Once a slide is added, you can edit it to fill out the question and responses. The Quiz properties panel becomes available once you add a question slide; it contains all of the settings to customize how this question works.
Enter the slide's question in the Question field.
Click the Quiz properties panel tab.
Change the number of answers using the Answers field.
Adjust the other Answers options.
You can Shuffle the answers, so that they'll appear in a different order every time the quiz is taken. You can also toggle Multiple Answers, turning the responses into checkboxes so that more than one can be chosen. Partial Score can be applied to questions that have more than one answer to award some points even if not every correct answer is selected.
After those options, you can set the points value for the question, as well as a penalty for an incorrect answer.
Enter the possible responses in each of the Answer fields.
Click the option button for the correct answer.
Adjust the other options in the Captions, Buttons, Actions, and Reporting groups.