Which action completes this diagram ?

Establish a national bank

Explanation:

In 1790, in an attempt to improve the United States economy, Alexander Hamilton, the then United States Secretary of the Treasury plan to improve the economy of the United States economy proposing that the federal government would assume state debt, and at the same time "ESTABLISH A NATIONAL BANK."

The purpose is to establish and steady the nation's financial value and to ensure there is robust management in the economic business of the United States government particularly considering the new Constitution.