Which of the Following Statements Is True of the Abstract

Which of the following statements is true of the abstract of a research article?

A) It involves brief summaries of the research.
B) It includes the names of the cited authors, the sources, and the kinds of publications.
C) It is generally used for quoting and paraphrasing as it is more accurate than the article.
D) It contains a summary of the findings of the research and a discussion of their possible meaning and implications.