what is the importance of a review of related literature?

1. it JUSTIFIES YOUR CHOICE o reseach question, theoretical or conceptual framework and method
2. it ESTABLISHES THE IMPORTANCE of the topic,
3. it PROVIDES BACKGROUND INFORMATION neede to understand the study
4. it PROVIDES RESEARCHERS FAMILIARITY with signiicant and/or up-to-date research revelant to the topic and.
5. it ESTABLISHES YOUR STUDY AS ONE LINK IN A CHAIN OF RESEARCH that is developing knowledge in our field

i give 60 points becaus its little hard to answer so pls can yu answer it correctly