Help With Quizzes and Audio

Hello All, 

I was wondering if there was anyone out there that might be able to help. I have a quiz that is only 4 questions long and set up in multiple choice format with audio of the questions read to the participants once the slide starts. However, after they have taken the quiz and review each question the audio automatically picks up right where it leaves off. What I want to do is make the it to where each time you revisit that slide, or when you review the slide, the audio starts over and your answer is still there. I am not very familiar with articulate storyline 2 as this is my first project. Any help would be very much appreciated.

Thank you,

Joshua