A market research study of soft drink consumption and distribution in Hungary commissioned by an American company indicated that soft drinks were available in drugstores. However, Western-style drugstores do not exist in Hungary. This illustrates an important issue in global marketing research, namely:
A) inflated data.
B) using convenience samples.
C) market estimation by analogy.
D) comparability of data.
E) using multiple dimensional scaling.
Answer: D) comparability of data.