In this technological age, today's students are faced with on-line educational opportunities at both the high school and post-high school level. Many educators wonder how effective such on-line courses really are. Imagine you are an educator designing an on-line course. Before beginning, you decide to conduct a study about the effectiveness of on-line courses. The research question guiding your study is: How do exam scores of on-line courses compare with exam scores of traditional courses? Your data provides a quantitative comparison of the two types of courses. You determine that test grades are significantly higher when students take on-line courses. What question would NOT be appropriate for further quantitative study of the topic of on-line versus traditional courses? A) What are the strengths and weaknesses of on-line courses? B) Which courses do more students utilize, on-line or traditional? C) Which type of course is completed in the shortest amount of time? D) Which courses have the higher enrollment numbers, on-line or traditional?