Final answer:
Disabling the SSID results in the network not being broadcast and thus not visible in the list of available networks, but connected clients can still access it manually if they have the necessary credentials.
Step-by-step explanation:
When the SSID (Service Set Identifier) is disabled on a wireless access point or router, the wireless network does not broadcast its name, making it invisible in the list of available networks on client machines. This means clients will no longer see the SSID as an available network (Option C), which can be considered a form of security through obscurity. However, the network can still be accessed by clients that already have the SSID and credentials configured; they simply need to connect manually by entering the SSID name. Disabling the SSID broadcast does not affect the capability to use the wireless network for clients that already have the details. Moreover, it does not affect network preferences like HomeGroups or Preferred Networks as these are client-side settings.