The manager of Big Brand Clothing wants to get a feel for what items consumers are looking for this Christmas so that he can plan his orders. He decided to gather this data by stationing employees outside the store on a particular Saturday with a list of questions to ask to some willing shoppers. He is using a ____ method to select respondents.
A. Probability Sample
B. Random Sample
C. Systematic Sample
D. Nonprobability Sample
E. Census
Answer: D. Nonprobability Sample