The correct answer is all of the above. Each of these sources can be credible, depending on the context, the author, the publication process, and the quality of the information presented.
- Interviews can provide firsthand accounts and insights, especially if the interviewee is an authority on the topic.
- Books are often well-researched and peer-reviewed, particularly academic or scholarly books.
- Newspapers can offer timely reporting, though the credibility can vary based on the publication and its journalistic standards.
It's important to evaluate each source critically for accuracy, bias, and reliability.