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: New Xylophone. Sentence 1: Barry recently bought his daughter a xylophone. Sentence 2: Barry's daughter loved the xylophone. Sentence 3: However, last night, Barry's daughter broke the xylophone. Sentence 4: Barry decided he would purchase a new xylophone for her. Choices: a. Emily realized that her keys had been in her pocket this whole time. b. Barry could not wait to surprise her with the new xylophone.
Output:
b