The rhetorical device used in the opening lines of Jane Austen's "Pride and Prejudice" is irony, as expressed in option B and further explained below.
The rhetorical device known as irony consists of saying something but meaning something else. This rhetorical device is used especially to create humor and to grab the audience's interest.
The opening line of "Pride and Prejudice" uses irony by stating that everyone knows a wealthy man needs or wants a wife. Such a thing is not true at all, but author Jane Austen says it is as a means to create humor and to criticize society.
With the information above in mind, we can select option B as the correct answer.
Learn more about irony here:
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