A cheque-processing centre uses exponential smoothing to forecast the number of incoming cheques each month. The number of cheques received in June was 38 million, while the forecast was 41 million. A smoothing constant of 0.25 is used. a) Using exponential smoothing and given a, the forecast for the month of July = million cheques received. (Round your response to one decimal place.) b) If the cheque-processing centre received 45 million cheques in the month of July, then using exponential smoothing and given a, the forecast for the month of August = million cheques received. (Round your response to one decimal place.) c) Exponential smoothing may not be an appropriate method to use for the cheque-processing centre because O A. the cheque-processing centre should observe a cyclical trend in its processing requirements. OB. the cheque-processing centre should observe seasonality in its processing requirements. O C. the cheque-processing centre should observe an increasing trend in its processing requirements. OD. the cheque-processing centre's forecast is very hard to make as its processing requirements should have a very high variability.