Answer:
A. The Northwest Ordinance proved the government could manage land effectively.
Step-by-step explanation:
The articles of confederation were an agreement between all the states American colony which was intended to unite all the states and government them under a same nation.
At that time, many people doubted that their state would be benefited if they are forced to follow under the rule of one central government.
Supporters of this unification, argued that central government will make states job became easier. The Northwest Ordinance was a small proof of that success. The ordinance was managed by the central government to incorporated territory in northwestern part of USA and it was considered a huge success.