What is one aspect of a source that makes it credible?
It is written by an authority on the topic.
It was published over 25 years ago.
It expresses a specific opinion about an issue.
It has an interesting design.

Respuesta :

It is written by an authority on the topic.

Answer: It was written by an authority on the topic.

Explanation:  Because when someone who has an authority on that topic they are usally correct which would make that a credible source.