An article from a university that uses advanced statistics to determine the total calorie loss for 10 different physical activities.
Explanation:
This is the source that would be most reliable for researching the most effective types of physical activity for high school students. Option A is a blog by someone who is not an expert in the subject. Option B is written by someone who is likely to be biased or has a particular agenda to fulfill. Option D is also written by someone who is not an expert, and who is too close to the subject matter. Therefore, the best option is C, as it provides the more unbiased information while also providing concrete evidence for its claim.
C- it would be bias for answer A , many high school student don't have a personal trainer as well as blog posts are not reliable, and parents do not have experience the direct impact . Those are all the reason it can't be any of the others.
