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: Coat. Sentence 1: My father wore a blue coat to work. Sentence 2: He always paired it with a hard hat. Sentence 3: His job required wearing those things every day. Sentence 4: I started getting them out for him in the mornings. Choices: a. I was short so they were difficult to reach. b. I told him I couldn't take it anymore.
Output:
a