what is one way to determine that a source does not have bias?\nthe author presents two sides of an…

what is one way to determine that a source does not have bias?\nthe author presents two sides of an argument.\nthe author is known to believe in one side.\nthe article is published on a free website.\nthe article states a one - sided purpose.
Answer
Brief Explanations:
A non - biased source presents multiple sides of an argument. Presenting two sides shows an attempt to be objective. Knowing an author believes in one side suggests bias. Publication on a free website is unrelated to bias. Stating a one - sided purpose indicates bias.
Answer:
The author presents two sides of an argument.