In this task, you're given the title of a five-sentence story, the first four sentences, and two options for the fifth sentence as a and b. Your job is to pick the sentence option that seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Title: The Wine Tasting. Sentence 1: Kim and Brian had been dating for a little while. Sentence 2: One week Brian was trying to surprise Kim with something fun. Sentence 3: He had received an email about a wine tasting that week. Sentence 4: He decided to try to bring Kim to the tasting. Choices: a. She wound up having an amazing time! b. All of his hard work paid off after he received his passing grade.
a