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.

Title: Bringing home a new kitten. Sentence 1: One day, I decided to add to my pet family and bring home a kitten. Sentence 2: I have a dog, and I was concerned with how they would get along. Sentence 3: I brought the kitten in and set her on the floor near the dog. Sentence 4: The dog sniffed her and his tail starts wagging. Choices: a. They are now the best of friends and sleep together every night! b. She found she broke a glass, and cleaned it up and put on a band aid.
b