Could you post the answers as well?
Paul, after Christ's death, became one of the main reasons that the Roman empire converted to Christianity. He went on many long trips deep into the empire, preaching and spreading the religion. He and the other disciples affected so many people, that the Roman emperor Constantine made it legal to practice other religion in the empire. Eventually, because Paul started a chain reaction, and the emperor after Constantine, Theodosius, made the empire's main religion Christianity.
"C. The need for free and compulsory education decreased" is incorrect. Even though the industrial revolution was going on people still needed free education.
The Kings was at the top of that Hierarchy in Medival European Society.