The Primary Advantage of Area Sampling Plans Is

The primary advantage of area sampling plans is

A) area sampling data is easy to tabulate and analyze.
B) they don't require probability-based methods of element selection.
C) results can be generalized from one area to another without loss of statistical efficiency.
D) they don't require a list of elements from the population of interest.
E) the results are more understandable for the general public than other, more complex plans.