Refer to the exhibit. Which action must be taken to configure a WLAN for WPA2-AES with PSK and allow only 802.11r-capable clients to connect?

Enabling Fast Transition (802.11r) and specifically selecting 'FT + PSK' as the authentication method ensures that only clients supporting 802.11r with pre-shared keys can associate. This configuration strictly enforces 802.11r for client connections while using WPA2-AES with PSK.

Enabling 'Fast Transition' and 'PSK' separately might still allow non-802.11r clients to connect via standard PSK, failing to enforce 802.11r exclusively.

'Adaptive Enabled' for Fast Transition allows both 802.11r-capable and non-802.11r clients to connect, which violates the requirement to allow *only* 802.11r-capable clients.

Simply enabling 'PSK' and 'FT + PSK' might not explicitly enable the Fast Transition feature itself, or might allow for fallback to standard PSK, thus not guaranteeing 802.11r-only client access.