APA citation style is a method that is used to write the reference link and is cited in the paper and book. In the given blank the publication's name must be incorporated. Thus, option D is correct.
APA style is a method known as, the American Psychological Association style and includes the last name of the author along with the date (year) of the publication. They are used in writing research papers and publications.
They are useful in providing information about the author and the year in which the article was actually published. In the given style the author's last name and the year of the publication are already mentioned but the name of the publication is missing.
Therefore, option D. the publication is the correct blank.
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