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: Rain. Sentence 1: Regina loves the rain. Sentence 2: She decided to finish her book while it rained today. Sentence 3: Regina managed to finish five chapters. Sentence 4: But the rain was so soothing that she fell asleep. Choices: a. Although she didn't finish her book, she was happy with her nice nap. b. He heads to Atlanta to have fun and sin.
Example Output: a

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: Dice. Sentence 1: Tim and John were good friends. Sentence 2: They desired to play a game together. Sentence 3: Tim mentioned he had dice in his pocket. Sentence 4: John suggested they play dice. Choices: a. She encapsulated herself in a world of self-hatred. b. They played dice.
Example Output:
b