None of these is the correct answer
I believe the correct answer is D. complexity of character.
A is incorrect because realist writers didn't believe in destiny; B is incorrect because not all realist novels have social trials; C is incorrect for the same reason - not all realist novels have tragic events. Therefore I would pick D, because complex characters reflect reality and what exists in our actual lives.
I'm not really sure, but if she is selling it, it has to be good. After all she is a celebrity.
B.) it gives details about a person’s life