What role did democrats have in congress in the decades following the new deal?

The correct answer is the following.  

The role of the Democrats after the New Deal was that they held the majority of the seats in Congress for many years.

After the New Deal, the Democratic Party had the majority of the seats in Congress from 1932 to 1960. Although the Democrats lost the presidency in 1952 and in 1956 (to Dwight D. Eisenhower), they were the majority in Congress. That is why Franklin D. Roosevelt could have the support of many organizations during his tenure. The Democrats were an important part of this period and when the Republican president won the election, they had to act as an accountable opposition party.

all choices are correct

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.