What is a possible reason for this?

A wireless client cannot connect to an 802.11b/g BSS with a b/g wireless card. The client section of the access point does not list any active WLAN clients. What is a possible reason for this?

A.
The incorrect channel is configured on the client.

B.
The client’s IP address is on the wrong subnet.

C.
The client has an incorrect pre-shared key.

D.
The SSID is configured incorrectly on the client.