Critical Reasoning

A recent study shows that teenagers participating in after school creative activities such as music and painting are more likely to show symptoms of depression than teenagers who do not engage in such activities. It was also observed that teenagers who participated exclusively in sports showed the least signs of depression. Although one cannot conclude from these results that depression is caused merely by participating in creative activities, there is definitely a correlation between depression and engagement in such activities as the study also showed that
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Which of the following statements most logically completes the above passage?

A-girls participating in after-school creative activities reported higher rates of depression than boys participating in such activities.

B-teenagers participating in activities such as music and painting were found to be significantly more introverted than teenagers participating in sports activities.

C-there was no difference between the magnitudes of the depressive symptoms observed in teenagers who participated in both creative and sports activities and those who participated just in creative ones.

D-some very famous musicians and painters are patients of a psychological disorder called schizophrenia.

E-the use of mood enhancing drugs was more prevalent among the students of schools winning various arts competitions than in the students of schools winning sports competitions.

[spoiler]The OA is C. Could you guys please explain why option E is incorrect?[/spoiler]