The adaption they use is literary adaption in which the authors in which they adapt a literary source to another genre.
The answer is C characterization ans setting
In conclusion all the characters should be present as it is the end
If my memoery does not deceive me it is closely related to the tale of Macbeth. hope this helps you! :)
The first letter determines 1st, 2nd letter determines second;
steam,swell,zone,zoo