The prophecy of Agabus in Acts 11:28 foretold a severe famine. While seemingly straightforward, what crucial element of its prophetic significance is often overlooked?

A It was the only prophecy in the New Testament that proved to be false. B It prompted the believers in Antioch to proactively send relief to the brothers and sisters living in Judea, demonstrating practical Christian charity and unity. C It was primarily intended to demonstrate Agabus's prophetic abilities to the Roman authorities. D It was a prediction of the end times.