Final answer:
Jesus used parables, which are short stories with moral or spiritual lessons, to preach his message as recorded in the Gospels of the New Testament.
Step-by-step explanation:
According to the Gospels, the unique literary genre Jesus employs to preach his message is A) Parables. The Gospels, which are the four books from the Christian New Testament—Matthew, Mark, Luke, and John—record the life and teachings of Jesus of Nazareth. These books contain numerous parables, which are short, illustrative stories that teach moral or spiritual lessons. These teachings were transmitted orally before being recorded in written form and are central to Christian doctrine.