Which Statement About the Difference Between Exploratory and Conclusive Research

Which statement about the difference between exploratory and conclusive research is correct?

A) Exploratory research is generally more structured than conclusive research.
B) Exploratory research generally follows conclusive research.
C) Qualitative research techniques such as in-depth probing are more likely to be used with exploratory than conclusive research.
D) Exploratory research is more likely than conclusive research to evaluate the impact of alternative marketing strategies.