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: Spider. Sentence 1: Jessica and Tom were happily married. Sentence 2: One day Jessica saw a spider in their home. Sentence 3: She became very upset. Sentence 4: Tom killed the spider. Choices: a. Jessica became very happy that Tom killed the spider. b. But he managed to ace the exam!
Example Output: a

Example Input: Title: Party Shoes. Sentence 1: Cindy went to a party at Lisa's house. Sentence 2: There was music and dancing at the party. Sentence 3: All of the girls at the party took their shoes off to dance. Sentence 4: Lisa's little brother, Bart, hid Cindy's shoes. Choices: a. Lisa was angry with Bart when she found out what he had done. b. As a consequence, he was reprimanded.
Example Output: a

Example Input: Title: The Failing Business. Sentence 1: Mike was trying to open up a tee shirt shop. Sentence 2: He put all of his heart, soul and time into the shop. Sentence 3: At first things seemed promising. Sentence 4: Before long though he had a huge lull in orders. Choices: a. He arrived to walk Lea home. b. Unfortunately his business was so bad he had to close up shop.
Example Output:
b