Jolyn Believed That There Were Gender Differences in Driving Habits

Multiple Choice

Jolyn believed that there were gender differences in driving habits.To test this hypothesis,she stood near a quiet intersection.Jolyn recorded the gender of each driver who approached a stop sign,and also whether the individual came to a complete stop before proceeding into the intersection.What sort of research is Jolyn conducting

A)  psychological testing 
B)  naturalistic observation 
C)  experiment with two dependent variables 
D)  case study research