Answer:
Here's the answer to the best of my ability..
You're asking for what sentence is missing a hyphen and I see nothing wrong with the one sentence that doesn't have a hyphen.
But if you're asking for what sentence is using a hyphen incorrectly then option B is your answer because machine gun doesn't need a hyphen.
If you're asking which sentences are using the hyphen correctly then option's A, and C are your answer.
If you're the question you asked has no mistakes then the best answer would be option D because that's the only option without a hyphen.
Hope this helps.
<span>Keeping this definition in mind, most of the lines in the prologue alude to the fact that the play will be a tragedy. It talks about how civil blood will make civil hands unclean, how two star-crossed lovers will take their own lives, and how their deaths will end a long-term dispute between two respectable families.</span>