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: Ziggy. Sentence 1: Ziggy the dog did not like strange people in his house. Sentence 2: He would bark non-stop and sometimes try to nip them. Sentence 3: For this reason, Ziggy's family hardly ever had guests. Sentence 4: Tired of this, they decided to take Ziggy to the vet. Choices: a. The vet prescribed prozac for Ziggy's anxiety. b. It was a slow turn.
A:
a