Which of the Following Describes the Process of Conversion to Eastern

Which of the following describes the process of conversion to Eastern Orthodox Christianity in Kievan Rus?

A) The Byzantine Empire required conversion during its occupation of Kievan Rus;not converting was subject to the penalty of death.
B) Byzantine missionaries succeeded in converting most of the people to Eastern Orthodox Christianity despite state opposition.
C) It was a freely made decision on the part of Prince Vladmir of Kiev,who chose Eastern Orthodox Christianity to unify his people.
D) People converted in order to avoid the special tax imposed on those who refused to accept Eastern Orthodox Christianity.