What answer below describes the sales forecasting method where buyers are surveyed concerning their intention to make a purchase?

taking each salesperson's forecast for his or her territory and multiplying it by an exponential factor based on sales management's judgment of future market conditions.

forecasting different market potential based on the use of various marketing strategies.

forecasting based on a survey of the firm's customers to ascertain what products and amounts of these products they expect to purchase within some future period.

soliciting the judgment of a group of experienced managers that are considered experts on market trends and growth potential.

identifying one or more factors that are related to sales at the zone, region, district, territory, or account levels and using these factors to break down the overall company forecast into forecasts at these levels.