Which One of the Following Statements About the Introduction and Literature

Which one of the following statements about the introduction and literature review portion of an article is INCORRECT?

A) As soon as possible at the beginning of the article, a specific problem the study focuses on should be outlined.
B) The importance of a research problem is determined by the reader's personal interest in it.
C) Introductions often use statistical information to establish the importance of a research problem.
D) If a study is based on a theory, the theory should be briefly described in the introduction.