You have an Ethernet network. Which of the conditions below can lead to increased congestion on your network?（）

• A、The use of Full-Duplex Mode.
• B、The Creation on New Collision Domains.
• C、The Creation on New Broadcast Domains.
• D、The Addition of Hubs to the Network.
• E、The use of switches in the Network.
• F、The Amount of ARP or IPX SAP Traffic.