A commentary in an academic journal is a scholarly source that analyzes or critiques existing research rather than presenting original findings. It serves the academic community by facilitating deeper understanding and discourse. Commentaries are distinct from primary and popular sources due to their focus on analysis rather than original data reporting. ;
A commentary in an academic journal is a scholarly source that provides analysis and critique of existing research. It is peer-reviewed and intended for an academic audience, differing from primary and popular sources. Thus, the correct answer is B. scholarly source.
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