Those Who Engage in Estimation Insist on Random Sampling, Rather

Multiple Choice

Those who engage in estimation insist on random sampling, rather than convenience sampling or judgment sampling, because random sampling:

A) avoids the errors inherent in matched-pairs sampling
B) avoids the errors inherent in work sampling
C) avoids the errors inherent in voluntary response sampling
D) eliminates the systematic error or bias that arises in nonrandom sampling
E) achieves all of these