Dr West Wanted to Know About the Media Preferences of All

Dr. West wanted to know about the media preferences of all students at Western University. The student body is 60 percent female and 40 percent male. So he conducted a survey in which 60 percent of the participants were women and 40 percent were men. In this study, Dr. West has used

A) a population measure
B) archival data
C) stratified random sampling
D) Internet sampling
E) an unrepresentative sample