Given the task definition and input, reply with output. 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: Take Me Shopping!. Sentence 1: Amy was only a week away from the new school year starting. Sentence 2: She created a school supply list. Sentence 3: Amy begged her mother every day to take her shopping soon. Sentence 4: Her mother waited till the day before school began. Choices: a. He finally fell asleep after an hour. b. Amy luckily found everything she needed on that day.
b