Read the sentence from "The Magic Prison." He spent hours each day before first one mirror and then another; and he did not notice that the windows were growing narrower and the mirrors wider. How does this sentence affect the story? A. It foreshadows the palace becoming a prison later in the text. B. It demonstrates the prince's inner conflict at that moment in the story. C. It introduces the prince's character at the beginning of the plot. D. It symbolizes selfishness and vanity at the story's turning point.

According to the given excerpt, the narrator describes the prisoner spending hours inside the prison and in front of different mirrors, that he did not notice that the windows were getting narrower and the mirrors wider.

Based on the complete text, the story is told of an only child who is pampered till he becomes a "spoilt brat" and disagreeable.One day a fairy, magical creature imprisons him, but gives him everything he could ever need.

The fairy also gives him a bird to keep him company, but because this boy is frustrated that he cannot leave, he becomes mean to the little bird, and each time he does this, the mirrors becomes narrower until he's totally in the dark.

As a result of this, this sentence from the excerpt foreshadows that the palace would become a prison.