Which of the Following Statements Concerning Single-Source Measurement Is TRUE

Multiple Choice

Which of the following statements concerning single-source measurement is TRUE?

A) It combines all the relevant data at the individual consumer or household level.
B) Much of the single-source data is tightly controlled by retailers.
C) Many companies that want the advantages of single-source data are not in a position to capture it.
D) None of these are correct.
E) All of these are all correct.