The answer to your question is D!
It is 5 divided by n (a number). The error is you should put n before 5.
The humid climate of the south was fantastic for growing tobacco and cotton, the south adopted an economic model similar to that of the English landed gentry (and many other countries.) that was hardly diversified at all because of the prime agricultural location the south was in.
I would need to see the story in order to answer that.