To Investigate the Impact of Population Density on Crime, a Researcher

Multiple Choice

To investigate the impact of population density on crime, a researcher compared average crime rates in low and high density neighborhoods .To control for poverty, which is related to both density and crime, he further stratified the data into low and high poverty neighborhoods .Instead of using this method of stratification, multiple regression analysis is often preferable because

A) It can accommodate more than one or two control variables
B) It is not limited to categorical variables
C) A fuller range of values of both the independent and control variables can be taken into account
D) All of the above