Detailed Instructions: 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.
Q: Title: Laura's Competition. Sentence 1: Laura entered a walking competition. Sentence 2: She had to walk fifteen miles every week, but it was worth it! Sentence 3: On the last day of the week Laura had to walk 10 miles. Sentence 4: She procrastinated so much but finally walked that 10 miles. Choices: a. The next day we went kayaking together! b. Laura went to sleep proud of herself that night.
A:
b