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: Ian was at a grocery store. Sentence 2: And lots of food he didn't need caught his eye. Sentence 3: He ended up spending money on things he's never eaten before. Sentence 4: And they ended up sitting in his fridge for months. Sentence 5: Ian decided to only buy what's necessary next time. Choices: a. Jan burns her hair. b. Unnecessary.

b