“Democracies are less likely to go to war than dictatorships.” Is this a scientific statement?

A survey sampling aimed at being both random and highly representative must involve selecting which of the following?

A) Geographic districts to sample, their religious characteristics, and random selection of which people to question from various categories B) Republican districts to sample, their population characteristics, and random selection of which people to question from various categories C) Geographic districts to sample, their population characteristics, and random selection of which people to question from a very narrow range of categories D) Geographic districts to sample, their population characteristics, and random selection of which people to question from various categories

Stratified sampling is a probability sampling technique where a researcher begins by identifying subgroups and then randomly samples from each subgroup

Indicate whether the statement is true or false