What makes private industrial networks different from net marketplaces?

A、Privateindustrialnetworksaretransaction-oriented.;
B、Privateindustrialnetworksfocusoncontinuousbusinessprocesscoordination.;
C、Privateindustrialnetworksfocusonasinglesponsoringcompanythat“owns”thenetwork.;
D、Privateindustrialnetworksarepublic.