The articles of confederation were
m

The Articles of Confederation (1781) was the original Constitution before being replaced in 1789. The Articles of Confederation favored power to the states. The Articles of Confederation was all created by the 13 States soon after the American Revolution. Obviously, the Articles did not turn out successful. For example, it did not have any sort of national court or executive branch. Each state had there own form of currency. If a amendment wanted to be passed, ALL 13 colonies had to agree

union blockade

explanation:

the union blockade in the american civil war was a naval strategy by the united states to prevent the confederacy from trading.

the blockade was proclaimed by president abraham lincoln in april 1861, and required the monitoring of 3,500 miles (5,600 km) of atlantic and gulf coastline, including 12 major ports, notably new orleans and mobile. those blockade runners fast enough to evade the union navy could only carry a small fraction of the supplies needed. they were operated largely by british citizens, making use of neutral ports such as havana, nassau and bermuda. the union commissioned around 500 ships, which destroyed or captured about 1,500 blockade runners over the course of the war.

i also think it is c