An engineer is configuring 802.1X and wants it to be transparent from the users' point of view. The implementation should provide open authentication on the swi...

An engineer is configuring 802.1X and wants it to be transparent from the users' point of view. The implementation should provide open authentication on the switch ports while providing strong levels of security for non-authenticated devices.Which deployment mode should be used to achieve this?

A. closed B. high-impact C. low-impact D. open