Answer: Option (A) is correct.
Explanation:
Let's assume the following result from the data analyzed:
Most motorcyclists who were involved in serious accidents, they did not take in consideration to take the course - this would suggest "Motorcyclists who did not take the course were more likely to get in a serious accident."
Therefore, if only 8% of motorcyclists have taken in consideration to take up this course, then this would predict that courses did not have a compelling effect on safety, thereby hindering the argument.
However, if compelling more than 8% of motorcyclists took this course, then the data would predict that courses were effective.