Where in the controller interface can you find a wireless client’s upstream and downstream link rates?

Where in the controller interface can you find a wireless client’s upstream and downstream link rates?
A . On the AP CLI, using the cw_diag ksta command
B . On the controller CLI, using the diag wireless-controller wlac -d sta command
C . On the AP CLI, using the cw_diag -d sta command
D . On the controller CLI, using the WiFi Client monitor

Answer: B