What is the result of setting the Fn key switch option to disabled in the HP Mini 5101 BIOS?

A.
The Windows key is disabled for all function keys.

B.
System functions are accessed by pressing one key only.

C.
Standard functions are accessed by pressing one key only.

D.
System functions require that the Fn key be pressed at the same time as thefunction key.

Explanation:
http://www.hpminiguide.com/forum/hp-mini-5101-discussion/2533-switching-betweenfunction-keys-fn-multimedia-control-keys.html
(last post on the page)