单项选择题
A.Evidence of the contract
B.A receipt for the goods
C.A document of title
D.Evidence of the ship being seaworthiness
单项选择题 General average to be（）in Beijing according to Beijing Adjustment Rules 1996.
单项选择题 Expenditure incurred by the parties to the adventure on account of salvage，whether undercontract or otherwise，shall be allowed in general average to the extent（）the salvage operations were undertaken for the purpose of preserving from peril the property involved in the common maritime adventure.