What was Valdimir, Grand Prince of Kiev, known for?

A. After sending out men to investigate various religions, he chose Eastern Orthodox Christianity as the state religion.
B. He defeated the Mongols and united the Russian princes under one rule.
C. After abolishing the people's assembly, he took millions of acres of land from the nobles and gave it to those who were most loyal to him.
D. He taxed his people heavily in order to build a magnificent palace and government complex in Moscow.

Question

What was Valdimir, Grand Prince of Kiev, known for?

A. After sending out men to investigate various religions, he chose Eastern Orthodox Christianity as the state religion. 
B. He defeated the Mongols and united the Russian princes under one rule. 
C. After abolishing the people's assembly, he took millions of acres of land from the nobles and gave it to those who were most loyal to him. 
D. He taxed his people heavily in order to build a magnificent palace and government complex in Moscow.

ThisGirlPretty · Answer

According to this site, it says that he "first Christian ruler in Kievan Rus, whose military conquests consolidated the provinces of Kiev and Novgorod into a single state, and whose Byzantine baptism determined the course of Christianity in the region." Source: https://britannica.com/biography/Vladimir-I

ThisGirlPretty · Answer

he was the*