According to the us constitution, states have legislative powers that a. are delegated to the federal government. b. relate to currency, the economy, and trade. c. are not assigned to the federal government. d. relate to the declaration of war and the military.

The answer is C. are not assigned to the federal government. Under the Tenth Amendment to the U.S. Constitution, all power that are not assigned to the federal government will be given to the states.
This power will be modeled exactly as three separate branches of the federal government and created so the government could handle affairs on much smaller level nation-wide

The answer is option b and c.