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.

Input: Consider Input: Title: Mint. Sentence 1: Katherine loved to chew on mints. Sentence 2: She loved having a fresh breath. Sentence 3: One day, Katherine ran out of mints. Sentence 4: She had to quickly run to the store and buy more. Choices: a. Then, Katherine was able to keep her breath fresh for the day. b. Finally, he rushed to the store and bought more eggs.

Output: a

Input: Consider Input: Title: The Math Problem. Sentence 1: The teacher looked out over the class and Joey slid down in his seat. Sentence 2: One finger pointed in his direction and Joey slid from his desk. Sentence 3: He stared up at the jumble of numbers on the chalkboard. Sentence 4: He wrote an answer on the board and hurried to his desk. Choices: a. Many customers were very happy when seeing the product. b. After the teacher said the answer was right, Joey smiled.

Output: b

Input: Consider Input: Title: Loose Clothing. Sentence 1: Tom was at the metal shop. Sentence 2: He was near a machine. Sentence 3: Tom wore loose clothes at work. Sentence 4: The machine caught a piece of his shirt. Choices: a. It ripped it right off of him and hurt him in the process. b. Jane was relieved she didn't feel any pain at all.
Output: a