The primary purpose of stratified sampling is to make the th

Solution

In stratified sampling, the population is partitioned into non-overlapping groups, called strata and a sample is selected by some design within each stratum.

If population density varies greatly within a region, stratified sampling will ensure that estimates can be made with equal accuracy in different parts of the region, and that comparisons of sub-regions can be made with equal statistical power.

Hence stratified sampling produce a smaller error of estimation than would be produced by a simple random sample of the same size

Hence the correct option is A) More accurate