Sue Taylor, Director of Global Industrial Sales, Is Concerned by a Deteriorating

Sue Taylor, Director of Global Industrial Sales, is concerned by a deteriorating sales trend. Specifically, the number of industrial customers is stable at 1,500, but they are purchasing less each year.She orders her staff to search for causes of the downward trend by surveying all 1,500 industrial customers.For this study, the set of 1,500 industrial customers is ______________.

A) a parameter
B) a sample
C) the population
D) a statistic
E) the frame