Which of the following are the advantages of load balancing? (Multiple Choice)

Which of the following are the advantages of load balancing? (Multiple Choice)
A . Support cross-availability zone active-active disaster recovery.
B . Adopting clustered deployment, supporting active-active disaster recovery in the same city in multiple availability zones, and seamless real-time switching.
C . Automatically complete distribution according to application traffic, seamlessly integrate with elastic scaling services, and flexibly expand the external service capabilities of user applications.
D . Support monitoring performance indicators based on listener granularity, which is more suitable for customer business statistics.

Answer: ABCD