Which two commands should be entered on a WLAN controller to remove any residual configuration？（）

A. Enter the clear controller command followed by the reload command.
B. Enter the clear controller command followed by the reset command.
C. Enter the clear controller command followed by the reset system command.
D. Enter the erase startup-config command followed by the reload command.
Enter the erase startup-config command followed by the reset command.
F. Enter the erase startup-config command followed by the reset system command.