4. Which of the following is the best explanation for why the Bill of Rights was added to the Constitution? The rights were seen as necessities that could not be left out.
It was always proposed to be included.
As a response to concerns of the Anti-Federalists
As a response to concerns of the Federalists

D.

Explanation:

D. As a response to concerns of the Federalists

- The Anti-Federalists opposed the constitution in fear the government would be too powerful and the Federalists felt a strong government was needed to lead the new nation.

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.

food chain i would say only because there is competition on getting food and survival