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: Ora hit someone in her car. Sentence 2: She pretended to pull over to exchange info. Sentence 3: But then she sped up and pulled off! Sentence 4: She hurried away from the other car. Sentence 5: Ora hoped she would not be caught. Choices: a. Stray Dog. b. Hit and run.
Example Output: b

Example Input: Sentence 1: Tom never liked his nose. Sentence 2: He decided to save up money to fix it. Sentence 3: Eventually Tom had plastic surgery. Sentence 4: Tom was pleased with the results. Sentence 5: His self esteem went up. Choices: a. Plastic Surgery. b. Lost Luggage.
Example Output: a

Example Input: Sentence 1: The boy had been scratching for days. Sentence 2: His doctor said he had poison ivy. Sentence 3: The boy was upset at hearing the news. Sentence 4: He knew he would be miserable for many more days. Sentence 5: What a horrible way to end the summer! Choices: a. The Diagnosis. b. The Doctor.
Example Output:
a