Which of the following is true of exploratory research?

Which of the following is true of exploratory research? 

Select one:

a. It is designed to identify cause-and-effect relationships among variables.

b. It provides researchers with conclusive data that answers particular questions, instead of giving them a general understanding of the marketing problem.

c. It provides researchers with a better understanding of the dimensions of the marketing problem before focusing on areas that require further research.

d. It is designed to describe the basic characteristics of a given population or to clarify its usage and attitudes.

e. It examines elements such as the effect of advertising on sales and the relationship between price and perceived product quality.