Answer: I'm confused ? what's the question ..?
.. " What appeals did MLK used in "I have a dream" .. same for " Letter from a Birmingham Jail "
The answer would be A) Entertain because Batman is a superhero from DC Comics and WB so in his comic books batman is NOT trying to persuade you into becoming a superhero and its not informal because its not informing you of anything, the answer is entertain because the comic is suppose to show a good vs bad battle so its in entertainment.
You would never know what the setting is,if the characters are not known and if the settings are unknown the story would have to turn to the theme or the plot. when the charaters are unknown the effect is losing place in the story. It might be confusing but if it help letme know!!
Even though I never read the text based on when I read questions I think it's is C