Answer:
Accurate, objective, and current.
Step-by-step explanation:
For a source to be credible, it is important to see how it is written, from where it is and who the writer is while also at the same time seeing how updated the information provided is. While an accurate work is correct, a biased work won't work well as that will only be based on one sided opinion or perception. Taking an objective point of view is a much safer option to get information from, an anonymous writer or an entertaining writer won't alone make it credible. Any work can be anonymous and entertaining but there are also chances that those works may not have high credits to them. And lastly, working from a source that is up-to-date makes it the more better to be trusted and used.