Answer: (D) Descriptive role
Step-by-step explanation:
The descriptive is one of the role of the marketing research and its main function is that it helps in gathering all the facts or factual statement for explaining the current situation of the marketing program.
The descriptive marketing research is one of the method that basically describe various types of characteristics of the group such as education, income and the age of the members of group in an organization.
Therefore, Option (D) is correct.