Definition: 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: Title: The Ruined Cake. Sentence 1: Jess was hosting her son's birthday party. Sentence 2: Things had been going well and it was time for cake. Sentence 3: Jess was walking with the cake when suddenly she tripped. Sentence 4: The whole thing was smashed and ruined. Choices: a. She had TWIN siblings - a brother AND a sister! b. Luckily she had bought backup cupcakes and used those instead.
Output:
b