We were relieved by jobs, war, and other countries trade.
In the early 19th c., the South of the country tended to oppose tariffs. As you may already know, the South opposed many things, slavery being the most important thing.
The correct answer is : patricians
They knew that people were going to change, and that the Constitution had to change with them. In order to be a working document, it had to be changed to reflect what was going on. At the same time they wanted changes to be taken seriously so they made it difficult to change things.