Final answer:
To determine an author's bias in a historical argument, the best question is what other sources can corroborate the facts used to support the argument, as this shows the reliability of the information and potential biases.
Step-by-step explanation:
The best question to help determine an author's bias when reviewing a historical argument is b) What other sources can corroborate the facts used to support the argument? This is because when you look for additional sources that can either support or contradict the facts presented by the author, you can better assess the reliability of the information and any potential biases. Authors may have their own perspectives and intentions, which could influence how they select and interpret facts. Corroborating evidence helps establish the credibility of an author's argument and can reveal if the author has excluded or misrepresented information, which could indicate bias.
Recognizing an author's bias is crucial in the historical thinking process, which involves corroboration and interpretation of sources to develop claims and draw conclusions. Questions like the author's purpose, the nature of the information, and the background of the author are necessary to dig deeper into the source material and ascertain the author's viewpoint. The inquiry about author bias also aligns with the historical research principles which stress on context, method, and scrutiny in interpreting textual sources. Therefore, identifying whether the facts used are based on solid corroboration, or if they stand unvalidated, plays a fundamental role in evaluating historical arguments.