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: The Concert. Sentence 1: The concert was going smoothly so far. Sentence 2: Maria watched as a stagehand ran out after the curtain closed. Sentence 3: He did his job quickly and ran back into the shadows. Sentence 4: Maria's earpiece buzzed alerting her to the time until curtain rise. Choices: a. She signaled the artist to get ready, then she exhaled. b. She gave her answer and won two tickets to a concert.
Output:
a