You will be given a definition of a task first, then some input of the task.
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.

Title: Stolen Credit Card. Sentence 1: Sam and Pat were on vacation in Jamaica. Sentence 2: Their credit card stopped working mid vacation. Sentence 3: They assumed their card number had been stolen. Sentence 4: The bank told them someone had stolen their card in Jamaica. Choices: a. He grew very quickly, and became a police officer. b. It was them, they forgot to call the bank before leaving the country.
Output:
b