The reason they adopted this was to "A.Justify Revolution". This was because up to this moment there really had not been a formal explanation of the goals of the movement.
The main reason why the elastic clause of the Constitution was important to Alexander Hamilton’s plans was that "<span>B. It allowed him to found a national bank", since he argued that this was "necessary and proper" for the US to function properly. </span>
I world say the answer is between 400 and 200 BCE
It made production a lot easier. They were able to produce more.