Which is a subtle incongruity in the extended metaphor within the passage?
 es
 A)
 It appears that he is a ghost walking down the street of life but he then
 Learns he is a leaf.
 B)
 It appears that he is a ghost walking down the street of life but he then
 learns he is a tree.
 It appears that he is a tree walking down the street of life but he then
 learns he is a ghost.
 D)
 It appears that he is a boy walking down the street of life and looking
 through doors, but he then learns he is a leaf.