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.

Title: Hey that isn't me. Sentence 1: Two twins were shopping. Sentence 2: One of the twins left the store stealing a coat. Sentence 3: The security man sees this and rushes to catch him. Sentence 4: The security man catches the innocent twin. Choices: a. He had tripped over his laces on the stairs, fell and broken his arm. b. The innocent twin is taken to jail for a crime he didn't commit.
b

Title: Toad. Sentence 1: Anna found a big toad in the road outside her house. Sentence 2: She carried it inside and asked her mom to keep it. Sentence 3: But her mom explained that the toad would be happier outside. Sentence 4: Anna thought it over and decided her mom was right. Choices: a. She went back outside and let the toad hop away, free. b. She happily chatted for an hour.
a

Title: new video game system. Sentence 1: Shawn was excited for the new video game system. Sentence 2: He was getting it shipped to his house. Sentence 3: Shawn waited all day for it. Sentence 4: Finally it came with a new video game. Choices: a. In the end, Joanna had to clean all of it out of the floor. b. Shawn played the rest of the day and night.
b