Responsys.com did a survey of some e-commerce companies concerning consumer privacy issues. As a result of the survey, the company announced that 70 percent of all e-commerce companies believe that more government regulation of online privacy is inevitable. Since, Responsys.com did not survey every e-commerce company, how did is it able to make this statement?
A) through the use of statistical inference
B) through the use of universe sampling
C) by collecting secondary data
D) by collecting observational data
E) through data mining
Answer: A