Some immigrants from czechoslovakia fled the religious and political oppression in the empire.
a. jewish
b. polish
c. german
d. austrian

The answer is "Option d".

Explanation:

In 1918, at the end of the First world war from different provinces of Austria's collapsing Empire, Czechoslovakia is established. It is also known as the Czech Republic, which was a picturesque country in Europe. It became the most successful and economically stable state in Europe during the interwar, that's why in this question only option d is correct.

discovery of cape town-portuguese empire

development of africans language-dutch east india company

introduction of railway-british empire

idk you know what i mean hahahaha