Which is a subtle incongruity in the extended metaphor within the passage? 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. C) 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.