Under the Articles of Confederation, Congress (The Federal Government) could not do which of the followin Maintain an army

Borrow money

Conduct foreign affairs

Tax the states

D. Tax the states.

Explanation:

The Articles of Confederation was the first constitution for the United States. It was known for being very weak and giving little to no power to the federal government.

With the Articles of Confederation, the government could not draft soldiers, regulate trade, amend the Articles, create and enforce laws properly, or even tax the states. In order to tax the states, the government had to outright request money from them. They had no power to tax them, only request money. This made it exceptionally hard to pay for war debts and other matters.

Over time, the support for the Articles of Confederation split. Some people supported it, while some didn't. The people who were in favor of the Articles of Confederation were called Anti-Federalists and they associated having a strong government with British tyranny. On the other hand, the people who wanted to amend the Articles of Confederation were called Federalists and they wanted to have a strong government.

Eventually, the Constitutional Convention 1787 was called to amend the Articles. While the original plan was just to amend them, they ended up getting scrapped altogether. The United States Constitution was created instead.    

your answer will most likely be a.