单项选择题 The Shipowner cannot rely on the excepted perils if he has not（）due diligence to make the ship seaworthy and its nonfulfilment causes the damage，nor can he do so if the vessel makes an unreasonable deviation.

单项选择题 The Shipowner can，however，exempt himself from liability for（），but if he wishes to do so，he must use clear and unambiguous language.

单项选择题 The Shipowner（）that the ship shall proceed on the voyage with reasonable despatch.