I presume you are talking about the Importance of Being Earnest. The answer is likely to be B: Friendship and Honor.
The entire play is focusing on Jack and Algy with their double lives.
Marriage and Courtship is one of the main points in the play, as it's all about how and who these people want to be with.
Social class and mobility is practically the entire point of the play, as Wilde is satirizing it.
This leaves you with Friendship and Honor. There is some importance on friendship in this play, but most instances are just said friends fighting over something.
