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: Donkey Mower. Sentence 1: Grant started the lawn mower. Sentence 2: The lawn mower stopped after a few minutes. Sentence 3: Grant realized that it was out of gas. Sentence 4: Grant put the lawnmower away. Choices: a. Grant bought a donkey to eat the grass. b. They all met with the supervisor and shared their feelings.
Output:
a