What is the background of the novel？

Reading ComprehensionRead the quoted parts carefully and answer the questions in English.Every Friday five crates of oranges and lemons arrived from a fruiterer in New York—every Monday these same oranges and lemons left his back door in a pyramid of pulpless halves. These was a machine in the kitchen which could extract the juice of two hundred oranges in half an hour if a little button was pressed two hundred times by a butler‘s thumb.
What is the background of the novel？
【正确答案】：

IT IS SET AGAINST THE ENDING OF THE WAR.

【题目解析】：该部小说的背景是战争结束以后。