单项选择题 A shipper of cargo aboard your vessel offers a letter of indemnity for the cargo. This is done in order to obtain a(n)（）.

单项选择题 A contract of affreightment is a（）.

单项选择题 A clause in a bill of lading stating that the carrier would not be liable for any damage unless the shipper proved negligence or lack of due diligence on the carrier’s part（）to be void because it shifted the burden of proof from the carrier to the shipper.