—Who should be responsible for the accident?

—The boss，not the workers.They just carried out the order ________.

A．as told

B．as are told

C．as telling

D．as they told

毛 * * 的《浪淘沙·北戴河》中写道：“往事越千年，魏武挥鞭。”中的“魏武”指的是谁？