The answer is B. Hopes this helps.
<em>Answer:</em><em>Take your coin or piece of jewelry, and place a strong magnet on top see if the magnet sticks to the object by the magnetic pull, or if it slides off onto the ground. If the metal attracts the magnet, you know it must be an alloy mixture and not a precious metal.</em>
D How the character creates an effect
The question doesn't have enough info to answer
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.