I believe the answer is: B.because of advances in science, medicine, technology, and the arts
During the hand civilization, China developed many advancement in use of herbs for medicinal purpose and adopted many technology from all across the world which increase their agricultural production capacity.
Their artworks were also developed to the point where it became a hot commodity among European nobles.
Answer: Oklahoma’s mineral resource were deposited by an ancient ocean.
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 Greeks limited voting to very few people and they voted directly. Rome was more free, but used representatives to vote. Please mark Brainliest!!!