I know that research! I don't know what you're asking for though. More info please!
The correct answer is D. Beyond the horizon.
This is because phrases don't have verbs in them and this is the only option that doesn't have a verb in it.
King Arthur showed chivalry and honor above everything else which is what medieval Europe praised as highest values. He was always just and wise in his ruling which is another aspect that the Western civilization values.