The main effect of the pun in the excerpt is that it
confuses the reader.
creates a funny moment.
creates a serious moment.
explains something to the reader.
jack. my dear algy, you talk exactly as if you were a dentist. it is very vulgar to talk like a dentist when one isn’t a dentist. it produces a false impression.

The right answer is: It creates a funny moment.

Explanation: In this excerpt from Oscar Wilde's The Importance of Being Earnest, Jack/Ernest is replying to Algernon's request: "Come, old boy, you had much better have the thing out at once." Algernon wants to find out why Jack is also Ernest, but he is trying to downplay the issue by expressing himself in such humorous way. Jack's reply is also humorous, thus contributing to the overall sarcastic and funny tone of the conversation.    

this is b. how railways dealt with people riding the trains without paying

femininity is conveyed through bernice's personality. she doesn't act how the other girls act and everyone thinks she is weird. she learns how to act in a way that was considered femininely appropriate at the time. she becomes so popular but her attempts to be liked end up backfiring when she is pressured into bobbing her hair. the author wrote that bernice cut off her cousin's hair in revenge for tricking her to cut her hair. this was the authors way of trying to change the way feminine is defined and the way women are expected to act.