Answer:
C
Step-by-step explanation:
Delphi method is a iterative group process, continues until consensus is reached.
It is generally applied to long term forecasting of demand. It is good for new products or for situations that are not well suited for quantitative analysis. Like other qualitative approches, the Delphi method is difficult to accurately measure.
There are three parts of participants:
-Decision maker. Evaluate responses and make decisions.
-Staff. Administering survey.
-Respondents. People who can make valuable judgments.