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: New Dog. Sentence 1: The kids had been wanting a dog. Sentence 2: They begged and begged their parents. Sentence 3: One day their parents took them to look at puppies. Sentence 4: They all fell in love with a black and white puppy. Choices: a. They decided to adopt it into the family. b. Tony skated a lot more without anyone there with him.
Output:
a