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.

Example Input: Title: Bus trip. Sentence 1: Jason wanted to visit Dallas. Sentence 2: He had friends who lived there and invited him to visit. Sentence 3: Jason researched flights but they were too expensive. Sentence 4: Jason decided to go to Dallas by bus. Choices: a. He felt confident the trip would still be fun. b. It had been a really fun night together.
Example Output: a

Example Input: Title: Science Project. Sentence 1: Jon had worked very hard at his science project. Sentence 2: Jon brought it to the science fair and set up a booth for all to see. Sentence 3: Jon's project was very popular and received many visitors. Sentence 4: Jon answered many people's questions regarding his amazing project. Choices: a. They called the police right away. b. Jon was very happy to win the blue ribbon for his science project!
Example Output: b

Example Input: Title: The school dance. Sentence 1: Tim was at the school dance. Sentence 2: All of the students were nervously hanging near the wall. Sentence 3: Tim decided that he had enough. Sentence 4: He randomly started moon walking across the floor. Choices: a. This made everyone comfortable enough to dance the night away. b. LLoyd decides to sell his classic muscle car to pay his expenses.
Example Output:
a