Which of the Following Is Correct

Multiple Choice

Which of the following is correct?

A) Every sample contains information about its population and there is never any sampling error.
B) Few samples contain information about populations, demographics give you information about populations.
C) Every sample contains information about its population and there is always some sampling error.
D) Populations that contain information about samples are free of sampling errors.
E) Sampling errors are not free, they are costly and contain poor estimators.