I believe the answer is Delaware
In my opinion and based on the researches I've done, among the four choices listed above, Jefferson's more liberal view of expanding rights for all Americans was most favored by the region of the South.
Thus,
The answer is letter C) South,
It was important because it was something like a first document on running a colony. Basically, if people wanted to sign it then they would and they would have to obey it. They would work hard and do their best to improve the colony and those not supporting the growth of the colony would be punished.