Answer:
In Oscar Wilde's play "The Importance of Being Earnest," Gwendolen refuses sugar in Act 2 Scene 2 for a symbolic reason. She states that she cannot have sugar because it is harmful to her husband's health. This refusal of sugar represents her refusal to engage in a frivolous or non-serious lifestyle, as sugar was associated with luxury and indulgence. By refusing sugar, Gwendolen reinforces her commitment to the strict social conventions of Victorian society.