It caused them to pay back their alliances
Answer:
Proportionate Sampling.
Explanation:
Proportionate sampling refers to a sampling technique that is used where the sample consists of many subgroups that are very different in size. The number of participants in each subgroup is assessed by their number compared to the total population. In this sampling process, the investigator splits a finite sample of the population into subgroups and then applies random sampling techniques to each population group.
