In Terms of the Literature Review, How Are Quantitative Research

In terms of the literature review, how are quantitative research and ethnographic research similar?

A) Both require the researcher to review the literature before beginning the study.
B) Both require the researcher to review the literature after completion of data analysis.
C) Both require the researcher to utilize the literature as the primary data source.
D) Both consider the literature review extraneous, postponing it until after the study is published.