If you get any answers incorrect all you need to do is follow the below steps to review and resubmit.
1. If any answers are incorrect the unit will say "Try Again" and you will be able to click back into it. 
2. You can then simply click "Start Attempt 2 of 15"
3. The unit will then open with the questions that need to be reviewed and resubmitted in a list on the left.
You will see that the assessor has left notes and/or further clarification to assist you in fixing up your original response.
