What unusual item did Miss Trefusis eat with a fork and knife?

In "Going Solo," Miss Trefusis stands out due to her unconventional approach to eating certain fruits. The correct answer reveals her quirkiness and challenges the reader’s expectations regarding how fruits are typically consumed. Eating an orange with a fork and knife is not only unusual but it also underscores her distinct personality and attitude. This act highlights the social conventions around food and how they can vary; it suggests a sense of sophistication or perhaps a deliberate oddity in her behavior.

Other fruits like bananas, mangoes, and pears are generally associated with casual eating, often enjoyed without utensils. The choice of an orange, which requires peeling and sectioning, exemplifies the unexpectedness of Miss Trefusis’s character, making it the uniquely correct answer.