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.
Answer:
think the answer is B, not sure let me know if it's correct
Explanation:
Put a semicolon because it is 2 independent clauses
A thesis statement must give three points of support. It should indicate that the essay will explain and give evidence for its assertion, but points don't need to come in any specific number.