Instructions: 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: Christmas Lights. Sentence 1: The man strung up the Christmas Lights. Sentence 2: He turned them on. Sentence 3: They did not light up. Sentence 4: He checked each bulb. Choices: a. He replaced the burnt out bulb. b. He had more than enough for the tickets!
Output:
a