Which source is not credible? A student is researching the effects of sugar on teenagers.
A
a newspaper article from this year about findings from a local dietician regarding sugar consumptionB
an online article from earlier this year featuring findings from a study on sugar and teenagersC
a research study conducted by a university last year on the impacts of sugar on high school studentsD
a blog post made three years ago by a group of students offering their experience with sugar