Which statements about immigrants in the late 1800s are true? choose all answers that are correct. a. most immigrants could already speak english when they arrived in america. b. most immigrants went back to their homelands after working in america for a few years. c. many immigrants had no skills and were forced to take low-paying jobs. d. many immigrants were looking for political freedom that had been denied them at home.

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.