Why Did Vladimir I Prefer Orthodox Christianity to Roman Catholicism

Why did Vladimir I prefer Orthodox Christianity to Roman Catholicism?

A) He preferred to avoid the pitfalls of the veneration of icons.
B) He believed that Roman Catholicism implied papal interference, while Orthodoxy embraced the control of the church by the state.
C) He was not familiar with Roman Catholicism, because the Western form of Christianity had not penetrated into eastern Europe.
D) He did not believe in clerical celibacy which was required of the Roman Catholic priesthood.