Which of the following problems are solved by installing a bridge？

A、Itreducesthenumberofstationssharingachannel/wire;
B、Itreducesthenumberoftransmittedpackets;
C、Itimprovesthecapacity(numberofpackets)transmittedinthenetwork;
D、Itimprovesthecapacity(numberofpackets)transmittedinthenetwork&Itreducesthenumberofstationssharingachannel/wire