Question

during the civil war, congress enacted the national currency act, which
created a national banking system
raised money for the union.
created a national currency.
all of the above.

Explanation:

The National Currency Act (1863) established the National Banking System, allowed national banks to issue a uniform national currency, and helped raise funds for the Union by stabilizing the financial system and enabling government borrowing. Thus, all options are correct.

Answer:

D. all of the above.