Definition: 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.
Input: Title: Entitled. Sentence 1: Piper was not used to not getting her way. Sentence 2: She tapped her slender foot on the floor, unhappy. Sentence 3: The waitress came to take her order but forgot her wine. Sentence 4: Piper insulted her before throwing her water in the waitress' face. Choices: a. The whole restaurant gasped when Piper left in a hurry after that. b. It was a mean trick.
Output:
a