Before starting to write a Literature Review, what are the questions we need to ask ourselves? ( )
选项：

A:How extensive is the coverage of my literature review? What literature will I include? What will I exclude? What is the criterion of my inclusion and exclusion?
B:Have I collected enough literature? If not,how would I expand it? What forms of literature would I consider?
C:Which works in my literature are more important and why? Are they import because of the authors, findings,methodology or anything else?
D:What will be the focus of my paper? What is the goal of my paper?