Which role of marketing research address "what if" questions? select one: a. prescriptive b. descriptive c. predictive d. diagnostic?

I believe the answer is: C. predictive
In marketing, predictive role refers to the marketing function to analyze historical data and use them to forecast potential event that might happen in the future.
Since the forecast is only based on assumption, the questions around it is asked with 'what if?'

Truehope this : )