What does this option do?

Within your Quiz Creation, you can select SHUFFLE QUESTIONS if you wish to completely randomise the order in which the questions are displayed for each user who attempts the quiz.

Can I shuffle the answers?

When you enable this feature, the answers will also be shuffled.

For further information on adding a quiz, please refer to article: MetaLearning 6.0 - How can I Add a Quiz to a Fusion Course?