In "The Magic Prison"


Prince Harweda had no sooner set his foot inside the small rose-colored palace than the iron door shut with a bang and locked itself.


How does this sentence affect the story?


(A) It reveals that his fairy godmother is actually an evil witch at the beginning of the plot.


(B) It shows that as part of the exposition even a beautiful setting may still be dangerous .


(C) It foreshadows that the prince will be unable to leave the palace later in the text.


(D) It develops the conflict between the prince and his father as the complicating incident.


Please help ASAP