About the description of using dynamic load balancing under the high-density scenarios, which is correct? (Multiple Choice)

About the description of using dynamic load balancing under the high-density scenarios, which is correct? (Multiple Choice)
A . In AP, the aim of the 5G priority access is to reduce the 2.4GHz load, improve the overall system performance
B . Load balancing is suitable for high-density wireless network environment, to effectively ensure the reasonable access of STA
C . Load balancing between APs, based on the number of access users or traffic load balancing, optimize the distribution of the terminal in the whole network, enhance the user experience
D . Dynamic load balancing can be based on the number of users, traffic, business type, the three elements to divide
E . The APs that enable the load balancing function must be connected to the same AC and the STA can scan the SSID of the APs that are load balanced with each other

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Answer: ABCE