Answer:
B. a law
Explanation:
If King Arthur were to issue an edict that Lancelot be brought back to the council as a traitor, the knights would consider this a law. This is because King Arthur's position is that of an absolute monarch. No one, not even the law, is above him, and his wishes have to be obeyed. Moreover, the knights have promised complete devotion and obedience to him, which emphasizes their duty to follow the king's instructions.
