What are the elements included in a research paper?
选项：

A:Title, Introduction including Review of Literature, Methods, Results, Discussion, Conclusion, References, Appendices. ;
B:Title, Abstract, Methods, Results, Discussion, Conclusion, References, Appendices ;
C:Title, Abstract, Introduction including Review of Literature, Methods, Results, Discussion, Conclusion, References, Appendices;
D:Abstract, Introduction, Methods, Results, Discussion, Conclusion, References, Appendices