From the outset, the us government grappled with the uncomfortable question of slavery in all of the following measures except the:
a. northwest ordinance in 1787.
b. constitutional ban on slave imports beginning in 1808.
c. missouri compromise in 1820.
d. nonimportation act of 1807.
e. compromise of 1850.

D. Nonimportation Act of 1807.

Explanation:

The non-importation Act was measure to stand against the American losses because of war between Britain and Napoleonic France. The Act banned the sale of certain British goods in an attempt to force Britain to abandon its influence on American sailors and honor American sovereignty. It was an economic response instead of a military one, to interference of the above-mentioned nation in American shipping.

how did justinian contribute to the byzantine empire?

one famous byzantine emperor was justinian i. justinian ruled from ad 527 to 565. belisarius was the commander who led these armies in an attempt to win back the old western roman empire. the war effort to take back the western part of the empire forced justinian to raise taxes on the people of the byzantine empire.

explanation:

mark brainliest and have a great day!