Answer:
The correct answer is A.
Explanation:
"I want to go to the movies, but I also want to go to dinner."
This sentence is grammatically correct and has the proper punctuation. Answers B and C make use of a semicolon ";", and in this case that would be incorrect because the clause (sentence) that follows a semicolon must be independent, the phrase must use a conjunction to make sense.
Please let me know if you need any more help. Thanks.
