Isolation: What is the purpose of this picture?

Read the excerpt from act i of the importance of being earnest. lane. i attribute it to the superior quality of the wine, sir. i have often observed that in married households the champagne is rarely of a first-rate brand. algernon. good heavens! is marriage so demoralising as that? this excerpt best illustrates which feature of a comedy of manners?

Which statement best completes its flow of reasoning

Once soueif's and her nieces join the protest, there is a distinct shift in the tone.