My father studied about the Nile River with proessor Waleed D. Najaar at Smithtown University
Sub-questions are narrower questions. They are important because they provide the 'skeleton' around which you will find information to answer your main research question.
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.
