Slavery tolerated because of "necessity" means that you do not really want to do it, but you think you must do it. An example is when you have a farm and you need people to work on it. The trouble behind this scenario is that your farm isn’t making money to pay your farm helpers their proper wages, so you resort to slavery. In this case, you do not need money for salaries because your farm is doing well to keep your slaves clothed and fed.
Slavery affirmed as a "moral right" is when you think it is your right to be the master and the slaves deserves to be slaves.
Let's look at this question differently: who had the most power in the European feudal system? the ones who owed livestock? The ones who owned gold?
No, the ones with the power were the land owner, and this is the correct answer: (2) land.
Answer:
Carpetbaggers wanted to help formally enslaved people.
The American colonies of 1760, did many Americans consider themselves British? Did they consider themselves Englishmen, even if born in the colonies? Also, am I right in the impression that a resident of Massachusetts would be the least likely to identify as British? That they were the most independent minded, even in 1760?