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: The Nightly Knocker. Sentence 1: When I was a child someone would knock on the door. Sentence 2: They would do it all night long. Sentence 3: My mom and sister laid there like they were frozen in fear. Sentence 4: I wondered why they didn't get up to see who it was or call the cops. Choices: a. I decided that I want to live a life that calls my attention every day. b. When I asked them why, they would tell me to be quiet.
Output:
b