Final answer:
Establishing rules for the Northwestern territories, creating a policy to sell western lands, and forming a national bank to regulate the economy would have made the Articles of Confederation more effective. The correct answer is option 1., 3. and 4.
Step-by-step explanation:
Under the Articles of Confederation, one provision that could have made it more effective is the establishment of rules for the Northwestern territories. This would have helped in resolving border issues with foreign nations such as Spain and Great Britain. By defining and regulating the western territories, the national government would have had more control over the expansion of the country and could have secured better commercial relations with other countries.
Additionally, creating a policy to sell western lands would have generated revenue for the national government and helped boost the failing economy of the republic. This would have provided the government with the resources needed to address public finance issues caused by the war.
Lastly, forming a national bank to regulate the economy would have brought stability and order to the financial system. It would have allowed the government to control and manage the currency, stimulate economic growth, and provide a means to borrow money.