Refer to the exhibit.
An engineer is testing client connectivity and is unable to transmit or receive at IEEE 802.11n high throughput rates. Which two Layer 2 security configurations allow the client to successfully connect at 802.11n rates? (Choose two.)
A. WPA2-AES 802.1x
B. WPA2-TKIP PSK
C. WPA-TKIP 802.1x
D. Open
E. 802.1x
The 802.11n high throughput rates are available on all the 802.11n access points for the WLANs using WMM with no Layer 2 encryption or with WPA2/AES encryption enabled.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-2/config-guide/b_cg82/b_cg82_chapter_010111.html