The Mediterranean Cafe Features Light Cuisine and Folk Entertainment

The Mediterranean Cafe features light cuisine and folk entertainment.It is located in the middle of an upper-class neighborhood.The owners are curious about where the customer base lives so that it can focus direct mail to those areas.For the last several weeks,employees scoped the parking lot noting license plate numbers so they could have a private research company trace them to the owners.The Mediterranean Café is engaging in:

A) Customer clustering
B) Residential research
C) Financial demographics
D) Geographic research
E) Customer spotting