Why were the Russians more inspired by the Greek Orthodox Church than the Roman Catholic Church?

They didn’t like the Pope’s approach to interpreting scripture.
They found Orthodox worship to be beautiful and mysterious and the Catholic Church too austere and plain.
They thought that Rome’s approach to religion was too fanciful—not serious enough.
all of the above

Question

Why were the Russians more inspired by the Greek Orthodox Church than the Roman Catholic Church?
 	
	They didn’t like the Pope’s approach to interpreting scripture.
	They found Orthodox worship to be beautiful and mysterious and the Catholic Church too austere and plain.
	They thought that Rome’s approach to religion was too fanciful—not serious enough.
	all of the above