Sasha,a Student in a Sociology Class,received His Graded Research Paper

Multiple Choice

Sasha,a student in a sociology class,received his graded research paper.He was deducted points for not citing a famous study done five years ago that was nearly identical to the research he conducted.What step in the research process should he have done more carefully?

A) define the research problem
B) carry out the research
C) interpret the results
D) select an appropriate research design
E) review the evidence / literature