I think that if you are talking about Latin it means an incomplete action
Write your address first and then the person you are writing to......
John Smith argues that the voyage was longer than what they expected, men were tired and theyr arrived to an unknown land. What ism ore, they did not have enough food, they did not have proper shelter so men started to get sick and die.
It's ....A ...because as should have been used, meaning which. I will refuse his demands which are outrageous.
But unless has nothing to do with the context provided in.... C ....because until should have fitted here.
