Better Offices,Inc

Better Offices,Inc.supplies office stationery and equipments to large retailers.To forecast its future sales,its sales department takes into account the views of top management representing marketing,production,finance,purchasing,and administration.Better Offices is using the _____ for sales forecasting.

A)  sales force composite method
B)  customer expectations method
C)  time-series analysis
D)  jury of executive opinion method