Final answer:
A peer-reviewed research paper from a renowned journal would be the most effective and credible source to support Nadine's article.
Step-by-step explanation:
To determine which of these two sources would be effective to support Nadine's article, it is important to consider the credibility and authority of each. A peer-reviewed research paper from a renowned journal is typically considered the gold standard of research and has undergone rigorous scrutiny by experts in the field. It would provide strong evidence for Nadine's claims. On the other hand, a blog post written by an amateur in the field might not have the same level of credibility, since it hasn't been subject to peer review or may reflect an individual's opinion rather than well-researched information. Therefore, option b) A peer-reviewed research paper from a renowned journal would be an effective source to support Nadine's article.