Detailed Instructions: 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.
Q: Title: Found Cat. Sentence 1: Jane saw a cat while walking home. Sentence 2: It followed her all the way. Sentence 3: Jane felt bad and fed it. Sentence 4: The cat kept returning. Choices: a. We both used up our entire queue of balls. b. Eventually Jane kept it as a pet.
A:
b