The correct response is:
It presents information to the reader that the characters do not yet know.
In the passage, Chandra is eagerly anticipating the outcome of her application, believing that opening the envelope will provide a definitive answer about her future. However, the letter she receives simply informs her that she will have to wait 4–6 weeks for a response. This creates a sense of dramatic irony, as the reader understands that there will not be an immediate resolution, while Chandra is unaware of this.