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: One day, I looked in my pantry and saw I was out of food. Sentence 2: I decided to go to Winco to buy more food. Sentence 3: I drove to the store and bought groceries. Sentence 4: At the checkout line, I realized I had forgotten my money. Sentence 5: I had to drive all the way home to get it. Choices: a. Buying food. b. Coupon shopping.

a