A New Product Is Being Introduced, and a Nationwide Survey

Multiple Choice

A new product is being introduced, and a nationwide survey to determine the public's opinion of the product is to be conducted. The country is divided into six regions, then
Two states are randomly selected from each region, and then each state is divided into
Rural and urban markets. A number of these markets are selected, and randomly selected
People is these markets are surveyed about the new product. What type of sampling
Technique is being employed here?

A) double sampling
B) multistage sampling
C) systematic sampling
D) sequence sampling