What are the disadvantages of an Ethernet Network?

• A. The length of Twisted pair copper cables can not be so long for good transmission quality.
• B. Ethernet is fast only if the number of devices is less in the network due to CD (Collision Detection) technique. Only one device can transmit at a point of time.
• C. Addition of new devices or stations slows down the network for all existing stations. Ethernet is suited only for low to medium traffic networks.
• D. All the above