How did charles lindbergh’s flight across the atlantic ocean change the aviation industry?

a. his flight henry ford persuade workers to use the moving assembly line to build airplanes.

b. his flight triggered a competition among the united states and other countries to quickly build as many airplanes as possible.

c. his flight convinced many americans that air travel was safe, resulting in an increase in commercial aviation.

d. his flight took so long that the aviation industry became more focused on shorter flights between nearby cities.

Answer is :  C. His flight convinced many Americans that air travel was safe, resulting in an increase in commercial aviation.

Explanation:

Lindbergh´s flight gave a boost to the aviation industry, it contributed to an increase in the numbers of passengers traveling betwen the USA and Europe on commercial airliners.

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.