Observers in a Supermarket Are Watching Customers Selecting Apples

Multiple Choice

Observers in a supermarket are watching customers selecting apples.They have been given a check list and told to check all the behaviors that apply for each consumer.This method of data collection is a(n)

A) unstructured-disguised observation.
B) unstructured-undisguised observation.
C) contrived setting observation.
D) structured observation.
E) laboratory observation.