Definition: 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'.
Input: Sentence 1: Stella loved to shop. Sentence 2: One day, Stella went to the mall and bought some dresses. Sentence 3: Of course, she then had to buy shoes to match the dresses. Sentence 4: Next, she bought purses to match the shoes that matched the dresses. Sentence 5: After that, her credit card reached its limit and she had to stop. Choices: a. Shopaholic Stella. b. Bad boss.
Output:
a