He advised them to write their own constitution
Answer:
His research might focus on slavery.
During the 1800 there was a big economic boom in the northern states. However, the south also had cotton as a leading cash crop during the 1800s.
Assuming you men "approve" and not "improve" here, it was all thirteen states that had to approve of the Articles of Confederation before they could officially go into effect.
The answer is B Feed enslaved people were faced woth discrimination