What significant event happens to Laura during Jim's visit in "The Glass Menagerie"?

During Jim's visit in "The Glass Menagerie," the breaking of the horn on Laura's glass unicorn is a pivotal moment that symbolizes a shift in her character and her reality. Prior to this event, the unicorn represents Laura's fragility and uniqueness, as it is the only one of its kind. When Jim accidentally breaks the horn, it serves as a metaphor for Laura's transition from being a fragile, isolated individual to embracing a more realistic and grounded sense of herself. The breaking of the horn also signifies the end of her illusionary world, where she had held onto the idea of being different and separate due to her disability. After this moment, the unicorn becomes just like the other horses in the collection, which can be interpreted as Laura accepting herself in a more conventional and relatable way. This transformation is central to the themes of the play, which explore reality versus illusion and the challenges of human connection. The other options do not carry the same weight of significance in relation to Laura’s character development and themes within the play.