Which of the Following Best Illustrates What Is Meant by "Lead

Which of the following best illustrates what is meant by "lead country" test marketing?

A) countries should be used as test markets only when they are first (lead) in some demographic characteristic important to the product or service class
B) in situations where a firm wants to evaluate products in the most developed countries first because they are assumed to have the most buying power
C) in situations where the firm is interested in introducing its products and services globally and a single country is used as a test market because it is thought to be similar to the other neighboring countries
D) in situations where there is dominant economic power of one country over those surrounding it
E) in situations where there is dominant political power of one country over those surrounding it