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: Doom. Sentence 1: Beth felt a sense of doom. Sentence 2: She hid in the closet. Sentence 3: Her mom came home. Sentence 4: She looked for Beth. Choices: a. Charlie doesn't have time to be too concerned with blemishes. b. She found Beth after one hour.
Output:
b