How does the concept of 'fulfillment' in Matthew's Gospel, particularly concerning Old Testament prophecies, serve Matthew's specific theological agenda?

A To demonstrate the superiority of Jewish tradition over Greco-Roman philosophy. B To prove that Jesus is the Messiah to a primarily Jewish audience by illustrating how Jesus' life and ministry align with Old Testament prophecies. C To encourage Gentile converts to abandon their pagan practices and embrace strict adherence to Mosaic Law. D To establish a completely new religion independent of Jewish roots and traditions.