When Vladimir I Converted to Christianity in 988, He Received

When Vladimir I converted to Christianity in 988, he received a Byzantine princess in marriage but was also asked to:

A) Contribute to an armed force that would attack the Catholic church in Rome in 1000.
B) Send an embassy to the king of Georgia to persuade him to convert to Christianity also.
C) Contribute 6000 Kievan troops against internal rebels in the Byzantine Empire.
D) Select a Russian to be appointed as the Patriarch of the Orthodox church in Constantinople.