What is the main aim of literature review？

A.analyzing a perspective or argues a point

B.analyzing or discussing researches previously published by others

C.summaries and comments on a newly published academic book

D.summaries， reviews and comments the research trends， the major discoveries， significant findings， the leading opinions on a particular subject

正确答案：summaries， reviews and comments the research trends， the major discoveries， significant findings， the leading opinions on a particular subject