Which of the following would NOT have been a legal government action under the Articles of Confederation?

A.
Hoping to improve the security of the southern border of the United States, the federal government declares war on Mexico.

B.
Hoping to improve the economy by encouraging spending, the federal government rapidly prints additional currency.

C.
Hoping to improve trade with France, the federal government sends an ambassador to negotiate a treaty with the French.

D.
Hoping to encourage trade between the states, the federal government lifts all tariffs enacted by state governments.

A. Hoping to improve the security of the southern border of the United States, the federal government declares war on Mexico.