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.
Input: Title: Chicago. Sentence 1: Mike wanted to show his friends around Chicago. Sentence 2: They went to Navy Pier and Millennium Park. Sentence 3: Then they went to Willis Tower to end their trip. Sentence 4: The friends thought Chicago was a beautiful city. Choices: a. They'd had a great time with their friend! b. Now no one makes fun of Jose for playing the trumpet.
Output:
a