Which of the following access methods can meet the above requirements?

When a visitor accesses the corporate network through Portal authentication, in order to ensure a good visitor experience, the visitor is required to open the wireless network range for a short period of time. When re- entering, there is no need to enter the username and password again and they can directly access the network.

Which of the following access methods can meet the above requirements?
A . MAC bypass authentication
B . MAC authentication
C . MAC priority Portal authentication
D . 802.1X authentication

Answer: C