There are several sentences that are given as a possible answer, but the only one that depicts domestic life as a whole and the main character's feelings is the following: "His marriage, a mere accident, then the disenchantment that followed it, his wife's bad breath and the sensuality and hypocrisy: then that deadly official life and those preoccupations about money, a year of it, and then two, and ten, and twenty, and always the same thing". In this sentence, the main character expresses that he did everything that society taught him was the "correct way" to live life, to get a job, get married, work, and even though he did everything, he does not feel satisfied or happy. The other answers merely talk about his childhood, his job and his ideas, not regarding domestic life.