The manager of a shopping mall wishes to expand the number of shops available in the food court. She has a market researcher survey the first 110 customers who come into the food court during weekend afternoons to determine what types of food the shoppers would like to see added to the food court. The survey has bias. What is the cause of the bias?

A. Nonresponse

B. Response bias

C. Sampling bias

Referring to the information in the previous question, suggest a remedy to the problem.

A. Reword the question so that is balanced.
B. Increase the sample size so that more people respond to the question.
C. Ask customers throughout the day on both weekdays and weekends.