You will be given a definition of a task first, then some input of the task.
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.

Title: Logan's Horse. Sentence 1: Saturday, Logan's horse broke through his fence. Sentence 2: He didn't know it got away until his neighbor called him. Sentence 3: The horse had gone into her garden. Sentence 4: It ate all her tomato plants. Choices: a. Logan spent the rest of the day fixing his fence. b. He gave them other food that's good for them instead.
Output:
a