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: Jan went to the bookstore. Sentence 2: She was looking for a cookbook. Sentence 3: One of the clerks helped her find a good cookbook. Sentence 4: Jan ended up buying an Asian cuisine cookbook. Sentence 5: For dinner, she made sweet and sour chicken. Choices: a. The Bookstore. b. Sunrise.

a