20 POINTS HELP PL

Which line MOST contributes to the irony in Lady Bracknell's dialogue?
Select one:

"A girl with a simple, unspoiled nature, like Gwendolen, could hardly be expected to reside in the country."

" It gives one position, and prevents one from keeping it up. That’s all that can be said about land."

"Fortunately in England, at any rate, education produces no effect whatsoever."

"However, I am quite ready to enter your name, should your answers be what a really affectionate mother requires."