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: Rosa and the Recipe. Sentence 1: Rosa's mother had a top secret lasagna recipe. Sentence 2: Rosa was dying to know what it was. Sentence 3: Rosa searched through her mother's belongings to find the recipe. Sentence 4: She could not find it. Choices: a. They hired somebody they could trust. b. Rosa's mother said the recipe can only be found in her head.
Output:
b