A word formed with a verb i think but idk for sure
Answer: D
Reasoning: If you think about it you cannot use it's in any other tense. Past tense, it's wouldn't work. Future tense, it's may not work.
Tactic: Process of Elimination
Macbeth has been adapted so many times for the same reason why all Shakespeare's plays have been adapted so many times. It is because they are not bound to a single point in time and by changing temporal details it can be applicable to any society at any time. The theme that is "power corrupts" has been ever present and this is why it keeps getting adapted.