Which of the following descriptions about the load sharing algorithm based on source and destination IP and port is correct?

Which of the following descriptions about the load sharing algorithm based on source and destination IP and port is correct?
A . This mode is highly reliable, but the network traffic will only be shared by one network card, and the other network card serves as a backup.
B . When there are IP and port in the message, use the source and destination IP, port, and MAC for load sharing; when the message has only an IP address, use the IP address
Perform load sharing with MAC; when the message has only MAC address, use MAC address for load sharing.
C . This mode is generally used in scenarios where most of the network traffic is inside the Layer 2 network. At this time, the network traffic can be evenly hashed by MA
E . This mode enables network traffic to be sent to each network port completely and evenly, but many messages may be out of order.

Answer: B