The correct answer is C. sentences closely connected in meaning. You don't have to use any connections, word pointers, or connectives for these two sentences, because their meanings are very similar. It is obvious how these sentences are connected - the best time she had was at Sherry's party, and the worst (time she had) was the next day. The part that I wrote in the brackets doesn't need to be repeated because the meaning is still obvious without the repetition.
