Which of the following are true about the Internet's impact on the way business is conducted today?

A、Ithasfacilitatedhigh-speedcommunicationamongemployees.
B、Ithasempoweredconsumerswitheasyaccesstoinformation.
C、Itcanbeusedasapowerfulsaleschannel.
D、Ithasfacilitatedmassmarketingbutnotthesaleofcustomizedproducts.
E、Itenablesmarketerstousesocialmediatoadvertisetheirproducts.