In the book of Acts, what is the theological importance of the conversion of Cornelius, a Roman centurion?

A It demonstrated the military strength and political influence of the early church. B It marked the beginning of the church's focus exclusively on Gentile converts. C It signified God's impartiality and the expansion of the Gospel to include Gentiles, breaking down the barriers between Jews and non-Jews. D It highlighted the importance of wealth and social status in becoming a Christian.