Which example best illustrates how the constitution reflects the principle of
popular sovereignty?

The constitution best illustrates this concept in the article I stablishing that the memebers of the house of representatives must be elected.

Popular sovereignty is the principle that the authority of a state and its government are created and sustained by the consent of its people, through their elected representatives (Rule by the People), who are the source of all political power.

Section 2 of article I includes various rules for the House of Representatives, including a provision stating that individuals qualified to vote in elections for the largest chamber of their state's legislature have the right to vote in elections for the House of Representatives

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.

ok sorry the answer is a. by their religion