Mein kampf was a book that described hitler’s
plans for world peace.
love of sports.
anti-semitism.
views on multiculturalism

The correct answer is anti-Semitism.

Mein Kampf was Hitler's most famous book and shaped his policy making while controlling Germany. In this, Hitler blames European Jews for most of Germany's social and economic problems. Millions of Germans read this book and began to follow Hitler's lead, as he promised to return Germany to its former pre World War I glory. This helped in propelling Hitler to national and international fame.

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.

i thinl it is the 1st answer