Multi-scored questionnaire

Hi all :)

I have asked this on the storyline 360 FB page but am awaiting answers, so asking here as well to cover all bases.

I'm near the end of designing a single choice questionnaire (10 questions in total) where each answer needs to be scored between 0 and 4. Each question has 3 or 5 answers and the total score will dictate the end result. 

This is the first time I've had to include a scored assessment method into a project, so would appreciate any help here. As far as I am aware, the freeform questionnaire tool only allows you to score one answer, is there a way to score multiple answers using this tool?

If not, would assigning each answer a numbered variable work? If so, how would you calculated the final score using this variable method?

 

Thanks