问题：

[多选] Which two statements about the open and shared key wireless-authentication methods are true？ （）

A .  Shared key authentication is considered more secure than open authentication.
B .  Shared key authentication is considered less secure than open authentication.
C .  If the WEP keys do not match using the open authentication method， the client will not authenticate， associate， and transfer data.
D .  If the WEP keys do not match using the open authentication method， the client will still be able to authenticate and associate， but will not transfer data.
E .  If the WEP keys do not match using the open authentication method， the client will still be able to authenticate， associate， and transfer data.