The correct answer is a case study because this type of study is considering a detailed study of a specific person. This type of study is often used in clinical, business, social, and educational researches.
A) is an incorrect answer because it is referring to the archival resources.
B) is considering a method where a large group is observed.
D) is considering a type of method where there must be an experimental study on the person, not an interview and examination.
I would say bicycling because jogging and jumping jacks can be bad on your knees because of the impact. Biking is pretty smooth though and wouldn't have much of an impact. Hope this helps :)
