"Sense and Sensibility" is a novel written by English author Jane Austen and it was first published in 1811. Along with other novels by the same author, "Sense and Sensibility" has become one of the best known and most reproduced and read of all. In essence, "Sense and Sensibility" is the story of the Dashwood family and particularly of two of the sisters, Elinor and Marianne, whose lives face great adventures, especially love, and a lot of obstacles, due to their lack of money and the people around them that complicate their existence. In the end, both end up happily married with the love of their lives. "Sense and Sensibility" also portrays the two polar opposites the two sisters offer; Elinor, the sensible, pragmatic and cerebral of the two, and Marianne, the emotional and more rash. In several chapters of the novel Elinor shows uneasiness about several situations that are going on in hers and her family´s life, but probably one of the first mentioned comes in chapter 16, when Elinor becomes uneasy because Willoughby, who they supposed was engaged to Marianne, suddenly leaves the sister and never contacts her again. This causes a cascade of very negative and harmful reactions on the part of Marianne that truly worry Elinor and her mother as well. Later on, in chapter 18, Elinor again becomes uneasy, but this time, because she notices that Edward, the man she loves secretly, does not display the affection towards her that she once thought he had. The correct answer here then is C: Willoughby´s sudden leave, because it almost destroys Elinor´s sister, Marianne.