What Is a Strength of Laboratory-Based Studies

Multiple Choice

What is a strength of laboratory-based studies? 

A)  It can raise questions to pursue through other research. 
B)  It can determine the effects of a variable. 
C)  Results from animal studies can be applied to human beings. 
D)  The list of possible causes of disease can be expanded. 
E)  It can control variables that may influence the prevention of a disease.