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: Flap. Sentence 1: The flap hung down at an odd angle. Sentence 2: The seamstress bought new material to replace it. Sentence 3: She ripped off the old flap. Sentence 4: She sewed on the new piece she'd cut out. Choices: a. She smiled with satisfaction at the job well done. b. Jodie decided not to ski and used her afternoon to build a snowman.

Ex Output:
a

Ex Input:
Title: Leave Early. Sentence 1: Kate's co-worker was quitting in 4 days. Sentence 2: And she had not been doing any work for a week. Sentence 3: Kate's boss insisted the co-worker leave early. Sentence 4: The girl left the job in tears. Choices: a. She changed her name to Gertrude and everyone left her alone. b. Kate felt bad since she knew no one deserved that type of treatment.

Ex Output:
b

Ex Input:
Title: How Chris Lost His Voice. Sentence 1: Chris went to a concert last night with his girlfriend. Sentence 2: The music was loud, so he spent the whole night yelling. Sentence 3: When he woke up the next morning, he was very hoarse. Sentence 4: His voice is squeaky and he sounds like a toy. Choices: a. Now Chris doesn't want to go anywhere today. b. In the end, they decided to shop at the Queens mall.

Ex Output:
a