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.

Ex Input:
Title: Lila's New Friends. Sentence 1: Lila was sad because she had no friends. Sentence 2: She tried to make friends, but she was too shy. Sentence 3: One day at the park Lila saw some kids playing. Sentence 4: One of the kids saw Lila looking at them and asked her to play too. Choices: a. Now Lila goes to the park every weekend to play with her new friends. b. She was too embarrassed to tell Jan she didn't have much money.

Ex Output:
a

Ex Input:
Title: The Tile. Sentence 1: The family was building a new home. Sentence 2: THey were picking out the tile for their kitchen. Sentence 3: They selected a shiny granite. Sentence 4: It would look great next to their cabinets! Choices: a. They couldn't wait until their home was finished. b. When the power came on, I walked into the living room.

Ex Output:
a

Ex Input:
Title: Follow the Sound. Sentence 1: Jane was in the basement. Sentence 2: She heard water running. Sentence 3: But there was no water on in the basement. Sentence 4: She checked the kitchen and bathrooms and found no water. Choices: a. A drunk driver blind-sided him, but Bob's briefcase was unscathed. b. She realized it must have been outside.

Ex Output:
b