Which historical development was a catalyst for the political and social change discussed in the source?

A- world war II

B- the Crimean war

C- the Russo - Japanese war

D- World War I

World war I is  initiated to be the  catalyst for the political and social change.

Explanation:

There were many social and political changes which were initiated in the first world war. Some of the social changes were the upheaval of fashion, people especially women started ton give up old and conventional way of dressing and they started to socialise. Urbanization also was initiated . Many started to migrated to cities for livelihood. women' rights were given importance.

Women staged protests and claimed equal rights on part with men as a citizen of the nation, they also asked enfranchisement rights. Civil rights started to begin which highlighted that all must be treated equally and overcome the racialist bias.

There were also major political changes. Many started to appreciate the success of  Democracy after the declaration of independence in America. Monarchy form of government were overthrown and people realized that they were the key factor ij the society.

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.

trade in silk, spices, and precious metals.

answer first choice