When setting up a wireless router for a WLAN, you have the following encryption options available:

WEP $-$ WEP$256-$ WPA $-$ WPA$2$

Which one of those is the best encryption standard for protecting wireless networks?

Wi$-$Fi Protected Access version $2($WPA$2)$

Wi$-$Fi Protected Access $($WPA$)$

Wired Equivalent Privacy $256-$bit $($WEP$256)$

Wired Equivalent Privacy $($WEP$)$