单项选择题 Which channel and mode should be used when initiating a distress alert transmission（）.

单项选择题 Where the master has not disclosed to the suppliers of necessaries that under an existing time-charter the Charterer is liable for the particular disbursements in question，（）will be liable to such suppliers to that extent.

单项选择题 Where advance freight is agreed upon，payment does not depend on delivery and must be made （）the ship is lost and the cargo never delivered.