Rolly Inc ,A Candymaker and Retailer,increases Its Candy Prices by 10

Multiple Choice

Rolly Inc. ,a candymaker and retailer,increases its candy prices by 10 percent in one of its stores while retaining existing prices in all its other stores.It then compares its sales in the test store to sales in its other stores.The information collected provides Rolly with evidence about the impact of price changes on its customers.The type of research used at Rolly Inc.best exemplifies _____.

A) experimental research
B) mathematical modeling
C) observational research
D) survey research