The correct answers are<em> (A): Prince Vladimir arranged mass baptisms in Kiev. (B):Princess Olga converted to Roman Catholicism </em>and <em>(E): Missionaries from Constantinople came to Russia.</em>
Christianity was introduced into the East Slavic state of Kievan Rus (Russia) by Greek missionaries from Constantinople come to Russia during the 9th century. In 957 princess Olga of Kiev converted to Christianity when the Constantinople missionaries baptized her. Olga's grandson Vladimir, the prince of Kiev, was then Baptized in 988, he as well arranged a mass baptism for his residents at river Dnieper. Thus this became the iconic event that led to Christianization of Kiev as well as evolution of the church of Russia.
The Industrial Revolution and new jobs in factories contributed to growth of cities in the late 1800's, as did immigration.
The united states expanded during the progressive era by limiting trade with other nations.
<h3>What do you mean by progressive era?</h3>
In US history, the period from the 1890s to 1920 is referred to as the progressive era, an era of intense social and political reforms that aimed at making progress towards a better society.
Federal immigration policies in the Progressive era includes Immigration act limited immigration and excluded all Asian immigrants.
Therefore, B is the correct option.
Learn more about the Progressive era here:
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Before the 1880s, most immigrants came from <span> northern and western Europe.
</span>Ater the 1880s, most immigrants came from <span>southern and eastern Europe.</span>
