"Duty-free" shops in airports and on international boats sell merchandise that can be brought into the country without which of the following?
import tariffs
political embargoes
restrictions on quantity
restrictions on resale

a.

congress passed laws allowing for free passage between states.

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.