Final answer:
At the Second Coming, we shall all be changed 'in an instant,' as described in 1 Corinthians 15:52 of the Bible. The transformation is immediate and sudden.
Step-by-step explanation:
The question you've asked refers to a concept from Christian eschatology concerning the Second Coming, which is a religious event foretold in the Bible. According to 1 Corinthians 15:52, 'In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.' Therefore, the answer is B) In an instant. This transformation is described as being immediate, signifying a sudden change for those who experience it.