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: Sandra and her friend loved tacos. Sentence 2: Weekly taco Tuesday's did not provide enough tacos in their lives. Sentence 3: Sandra declared there had to be a way to have more tacos each week. Sentence 4: Her friend slyly mentioned to her that Thursday also began with a T. Sentence 5: Taco Thursday's has been created! Choices: a. costume party. b. Taco Thursday.

b