The correct answer for this question is this one: "C. The title is helpful in establishing the play as a comedy of manners because it makes use of witty wordplay."
There exists the same question from other source with the following choices:
A. The setting at the opening of the play makes a comment on the benefits of being married.
B. The names of the characters in the play help Wilde illustrate the differences between social classes.
C. The title is helpful in establishing the play as a comedy of manners because it makes use of witty wordplay.
D. The first line of dialogue in the play helps Wilde emphasize a contrast between city and country life
If there is a selection of answers I would go with
Repetition
Parallelism
maybe some others but I don't know all the poetic devices you have to chose from
Important documents, pictures, clothes and as much food and water as I can fo survival
Shakespeare’s poetry is finer than his works for the theater.