Select all that apply

Which of the following statements are true of the forecasting techniques used for demand forecasting used by an organization?

Multiple select question.

New products and services lack historical data, so forecasts for them must be based on subjective estimates.

The Delphi method and executive opinion methods are often used for short$-$term planning.

If the objective of forecasting is to understand what drives sales, then regression should be used.

The best forecast is the most accurate and the least costly$.$