Although there are many themes of "The Landlady" by author Roald Dahl, one of the main themes is appearance vs reality. The Landlady is very nice and generous towards Billy which causes him to ignore the sinister plot the Landlady is conjuring.
A humorous essay spreads a humorous message, It's supposed to be entertaining.
That, is the answer i would think
I would say D because it gives an answer with sequence and follows along with the other points such as
-first
-second
-third
-? (fourth)
-finally
