C&S Manufacturing Company Makes Gift Wrapping Paper and Ribbons

C&S Manufacturing Company makes gift wrapping paper and ribbons.It wants to add 15 square feet to its most popular rolls of wrapping paper and keep the price of each roll at $4.95.C&S Manufacturing wonders if the additional paper footage would increase sales enough to offset the higher costs.What type of primary data research should the company use to answer this question?

A) focus-group interviews in a laboratory setting
B) telephone interviews with current and potential customers
C) observation research
D) experimental research