Answer:
Explanation:
1) It is trustworthy
If a source is reliable, it means that it does not contain false information, and that if there are opinions in the piece, they are clearly indicated to be opinions rather than disguising opinions as facts.
2) A survey of eight professional athletic organizations
When it comes to an opinion versus a survey, a survey typically collects more diverse and therefore more reliable info. Basketball players and baseball coaches are surely great at their respective sports, but they are not professional, and neither are the physed teachers.
3) A story about a teenager (...)
All of the other choices are studies, surveys, and interviews with professionals, so this single answer choice not including any research is a red flag.
4) It is trying to sell a product
Let's say a snack company is trying to sell their very sugary cookies. They might create an article claiming that these unhealthy snacks are 'good for athletes' and help their performance. These supposed facts cannot be backed up by anyone, nor are they even true! Therefore, any article with a goal to sell a product should not be trusted as unbiased.