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: Reynolds. Sentence 1: Andy was playing at my house. Sentence 2: His mother came over to pick him up. Sentence 3: She was standing in the kitchen talking to my mom. Sentence 4: He looked out the door and saw smoke coming from their chimney. Choices: a. Her friends were disappointed and upset. b. She had left the stove on and caught the house on fire.

Output: b

Input: Consider Input: Title: Bus trip. Sentence 1: Jason wanted to visit Dallas. Sentence 2: He had friends who lived there and invited him to visit. Sentence 3: Jason researched flights but they were too expensive. Sentence 4: Jason decided to go to Dallas by bus. Choices: a. He felt confident the trip would still be fun. b. It had been a really fun night together.

Output: a

Input: Consider Input: Title: Mouse. Sentence 1: Tom worked very hard online. Sentence 2: He worked from home. Sentence 3: He wanted to be able to work faster. Sentence 4: He decided his mouse was slowing him down. Choices: a. He ended up staying at a cheap hotel. b. He bought a unique mouse and improved his work speed.
Output: b