Answer:
Delaware, New Hampshire, Rhode Island, and Vermont
Step-by-step explanation:
The Northeast has the largest urban-industrial concentration, especially the traditional economic sectors, known as Manufacturing Belt (steel, metallurgy, automotive, naval, textile, among others). The region is the financial center of the United States, home to the nation's largest banks and financial institutions, such as New York's Wall Street financial district.
The Northeast consists of nine states: the states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont, which belong to New England; and those from New Jersey, New York, and Pennsylvania from the Middle Atlantic.