While Jesus is often associated with Galilee, what significant event in his ministry, according to the Gospels, primarily took place in Judea, highlighting its importance?

A The Sermon on the Mount, emphasizing ethical teachings. B The feeding of the 5,000, demonstrating his power over nature. C His crucifixion and resurrection, fulfilling prophecies and solidifying his messianic identity. D The calling of his first disciples, marking the beginning of his ministry.