The number of pages is the additional information needed to make the source conform to the MLA format, as shown in the first answer option.
The MLA format shows how research sources are used to form an academic paper. This format serves to standardize sources, show the reader the basis of research and prove the lack of plagiarism.
For this, the MLA format states that the name of the author of the research source must be presented, followed by the title of the article, the title of the journal, the issue number, the publication date and the page numbers where the article can be found.
Learn more about the MLA format at the link:
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