In this task, you're given five sentences, numbered 1 through 5, and two options a and b for possible titles for the story. Your job is to choose the title that better fits the story. Indicate your choice by 'a' or 'b'.

Example Input: Sentence 1: Evan had a new job. Sentence 2: He worked from home. Sentence 3: He tried to juggle his housework and his kids. Sentence 4: It was stressful but rewarding. Sentence 5: Evan was happy to have a job he liked. Choices: a. Isabel's Daddy Issues. b. Working.
Example Output: b

Example Input: Sentence 1: Norma and Robert had only planned to have three children. Sentence 2: After that either she would get a tubal ligation or he a vasectomy. Sentence 3: But they neither or them ever got around to it after the third child. Sentence 4: One day Norma had a suspicion confirmed by a positive pregnancy test. Sentence 5: An ultrasound confirmed not only was she pregnant but it was twins! Choices: a. Old Currency. b. Plus.
Example Output: b

Example Input: Sentence 1: Alice greeted the realtor at the door. Sentence 2: She was happy to give the realtor a tour of her home! Sentence 3: She showed her all of the rooms on the main level. Sentence 4: When it was time to go upstairs, she saw a huge mouse on the steps! Sentence 5: They both screamed and ran outside instead. Choices: a. Voting. b. The Tour.
Example Output:
b