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: Young Adult Learns Chickens. Sentence 1: The young married couple bought five acres on the outskirts of town. Sentence 2: The woman has always wanted chickens. Sentence 3: The man built a chicken coop and fenced an area. Sentence 4: Grandpa asked if they had any gravel. Choices: a. Allie then decided she was going to open up a salon. b. They did not know that chickens need to eat gravel.
Output:
b