I have to do an essay on the novel pride and prejudice, any ideas on a topic?

i have a few already but however the topic must be argumental...i want to do either the importance of social class in the novel, civility and prosperity, first impressions and how they are changed overtime, family ties and how they affect marriage, how the lure of money changes emotions (irrationally and rationally) or how elizabeth's pride and mr.darcy's prejudice prevents each other from admitting their love for one another. which topic is best-suited for an essay on this novel?please note i am only in grade nine so it shouldn't be too complex thanks :)