Surveys, Which Are Used to Collect Firsthand Data, Have Many

Multiple Choice

Surveys, which are used to collect firsthand data, have many advantages. One advantage is that

A) those who respond to mailed or online surveys exactly represent the overall population.
B) respondents can be relied on to respond openly and truthfully to anonymous surveys.
C) data can be gathered economically and efficiently.
D) return rates for online and mailed surveys are typically over 90 percent.