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 Unnoticed Costume. Sentence 1: Molly was a girl who liked to read books. Sentence 2: She especially liked to read fantasy novels about princesses. Sentence 3: Once, she dressed up as a character from her favorite fantasy novel. Sentence 4: She thought she would get lots of compliments on her beautiful dress. Choices: a. Jack agreed as he poured the wine and prepared to pop the question. b. But nobody seemed to notice that her clothes were out of the ordinary.
Output:
b