I believe it's the first one; both are narrated by an outside observer.
The answer to the question is A).
It is a run-on sentence. You have a complete sentence (verb and a noun), I like chicken, and then you have another complete sentence, I hate broccoli. If you had put an and between these two sentences you would have had a compound sentence. Hopefully this helps.
I've always been told check for <em>spelling errors </em>first, which technically you are beginning the process of proofreading.
Next, I've been told to look for usage errors, which means, did you use the word in the correct context.
Then I believe you look for grammar mistakes, which includes subject verb agreements, fragments, punctuation, and can include style of the paper, which I believe looks at the sentence variety.
Hopefully this helped and good luck.
The correct answer would be A