The correct answers are (A): Prince Vladimir arranged mass baptisms in Kiev. (B):Princess Olga converted to Roman Catholicism and (E): Missionaries from Constantinople came to Russia.
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.
Yes theres a ghost here because the ghost is attached to this area. In my house personally no but in another house yes. We came back from leaving an family friend alone at home and the door was locked when we came back we knocked and he opened the door for us to find hes been dead for hours from a heart attack. Its them saying good bye to there wife.