Which of the Following Statements Concerning Ethnographic Research Is Most

Which of the following statements concerning ethnographic research is most accurate?

A) Ethnographic research was specifically designed to use in global markets to help marketers understand cultural diversity and ethnocentrism.
B) Ethnographic research employs the use of genealogical data to track purchase behaviors through family lines.
C) Ethnographic research relies on physiological responses such as heart rate,breathing rate,and stress levels to obtain objective data.
D) Ethnographic research uses anthropologists and other trained researchers to observe consumers in their "natural use environment."
E) Ethnographic researchers use videotapes to eliminate miscues of subtle emotional reactions that can skew market research results.