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: Bed Wetting. Sentence 1: Evan was nine but sometimes still wet the bed. Sentence 2: He was invited to a sleepover but afraid to attend. Sentence 3: He did not want anyone to discover his secret! Sentence 4: Then his mom bought him a pack of absorbent underwear to wear. Choices: a. At the end of the day, Max already loved kindergarten! b. Evan felt much more secure with the backup underwear on!
Example Output: b

Example Input: Title: Bookshelf. Sentence 1: Spencer was moving. Sentence 2: He tried to lift the bookshelf. Sentence 3: The bookshelf fell down. Sentence 4: It broke all over. Choices: a. He walked back in because it was cold. b. Spencer bought a new one.
Example Output: b

Example Input: Title: The Top Hat. Sentence 1: Charles was very excited about his date. Sentence 2: He wanted to wear something extra nice. Sentence 3: He bought a top hat and put it on. Sentence 4: It seemed like the perfect accompaniment to his snazzy outfit. Choices: a. He hoped his date would be impressed! b. When the storm hit, James was glad it was only a thunderstorm.
Example Output:
a