Which of the following parts in an industry need not be emphasized in a management

A、Theindustrialsectorthatconsumesthemostresourceswithintheindustry;
B、Theindustrialsectorthatemitsthemostpollutantswithintheindustry;
C、Thecomponentproducerwithlowesteco-efficiencywithintheindustry;
D、Thecomponentproducerwiththelowesteconomiccontributiontothetotalindustry