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: Nancy saw an infomercial for an electric toothbrush. Sentence 2: And she ordered it right away. Sentence 3: But after months of using it, her gums began to deteriorate. Sentence 4: She went to the dentist. Sentence 5: But there was nothing that could be done. Choices: a. Electric Toothbrush. b. Trip to Australia.
Example Output: a

Example Input: Sentence 1: I had a cell phone. Sentence 2: I dropped it on the ground. Sentence 3: The screen cracked on my phone. Sentence 4: I called the insurance company. Sentence 5: They replaced my phone for me. Choices: a. Cell phone. b. Attempted Suicide.
Example Output: a

Example Input: Sentence 1: Ana was meeting a friend at a park. Sentence 2: She didn't see her friend. Sentence 3: Ana called her friend. Sentence 4: Ana realized she was at the wrong park. Sentence 5: She left to meet her friend. Choices: a. Meeting in the Park. b. The Grill.
Example Output:
a