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 does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.
Input: Title: Death of an old dog. Sentence 1: Marie knew she always cried too much. Sentence 2: So when her mom told her that her old dog had died, she stiffened. Sentence 3: Her mom didn't understand her reaction, but Marie refused to cry. Sentence 4: She stayed with her mom, stoic for an hour. Choices: a. As soon as she arrived at work, she cleaned the bubbles away. b. Only when she left, did Marie let her tears fall down her cheeks.
Output:
a