Which of the following statements is/are true about time-series forecasting? A. (4) Time-series methods are useful for long-range forecasts. B. (1) The basic strategy of time-series forecasting is to identify the magnitude and form of each component based on available past data. C. (2) Time-series methods are used to make detailed analyses of past demand patterns over time and to project these patterns forward into the future. D. (3) Under time-series methods, demand can be divided into components such as average level, trend, seasonality, cycle and error. E. All but (4)