Hi YKLee13, I am not sure how you are getting those options since the Intel® Centrino® Wireless-N 2230 is a single band 802.11n adapter, meaning that it is not supposed to offer the options related to the 5.2 GHz band or the 802.11ac standard.
However, leaving that information aside, I recommend uninstalling the driver from Device Manager and restarting your system. There is no need to mark the option to delete the software, these steps should revert the settings back to default.