WHAT WAS A WEAKNESS OF THE ARTICLES OF CONFEDERATION
THE FEDERAL GOVERNMENT COULD NOT RAISE MONEY TO FORM AN ARMY
STATES COULD NOT TAX GOODS MADE IN OTHER STATES
THE FEDERAL GOVERNMENT COULD NOT ELECT A PRESIDENT
STATE COULD NOT MAKE THEIR OWN MONETARY SYSTEMS
One weakness of the Articles of Confederation was that the federal government could not raise taxes and therefore had difficulty raising money to form an army or carry out other essential functions. Under the Articles of Confederation, Congress had the authority to make military and foreign policy decisions but lacked the power to enforce those decisions or collect revenue through taxation to fund those initiatives.
The correct answer to your provided statements is:
THE FEDERAL GOVERNMENT COULD NOT RAISE MONEY TO FORM AN ARMY
The other statements:
STATES COULD NOT TAX GOODS MADE IN OTHER STATES
This statement is false; under the Articles, interstate taxation issues did create problems, but the power to tax goods made in other states was not clearly enumerated.
THE FEDERAL GOVERNMENT COULD NOT ELECT A PRESIDENT
This statement is inaccurate in this context; while it is true that there was no executive branch under the Articles of Confederation, and thus no president as we think of the position today, this was a deliberate design choice rather than a "weakness." The weakness was the lack of a strong, centralized executive authority.
STATE COULD NOT MAKE THEIR OWN MONETARY SYSTEMS
This statement is also false. In fact, under the Articles of Confederation, states retained the power to issue their own currencies, which was actually a weakness as it created confusion and made trade between states more difficult.