Answer:
1.Credibility, accuracy, reasonableness, and support
2.No author listed, no supporting institutions, the author has been controversial or negatively reviewed in the past, the writing is poor or contains errors
3.Is the information fair and balanced, objective, realistic, and consistent?
4.In order to determine whether the author's claims are true and reliable, it's important to know where the author got his or her facts and statistics, and whether these are supported by the majority of experts in his or her field.
the third one, if you add the comma without the when then you would have a comma splice (when you put a comma between 2 independent clauses without a conjunction) adding the when before Cynthia makes the first part a dependent variable and makes it okay to add the comma!
Hope this helps! :)
Try looking for it on google, or use a viraity of apps
sorry ik this isnt very helpful