B. Federalists.
Step-by-step explanation:
Federalists supported a new Constitution for the United States because the Articles of Confederation were very weak and gave no power to the national government. Under the Articles of Confederation, the government could not tax citizens, regulate trade, or even make people abide to certain laws. This was not ideal, and people wanted something stronger and more reliable. Anti-Federalists opposed having a new Constitution for the United States. They thought the Articles of Confederation was ideal, as they would rather self-govern than be controlled by the national government. Anti-Federalists were scared the government would abuse their power, just like Britain did to the colonies, and would not let them get a say in what they wanted.