The Vanishing Point in Leonardo Da Vinci's the Last Supper

Multiple Choice

The vanishing point in Leonardo da Vinci's The Last Supper is:

A) at the exact center of the picture.
B) just behind the head of the figure of Jesus.
C) on the horizon line.
D) all of these: at the exact center of the picture, just behind the head of the figure of Jesus, and on the horizon line.
E) None of these answers are correct.