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: Geoffrey forgot to study for his math test. Sentence 2: The morning of the test he was nervous he would fail. Sentence 3: Geoffrey snuck his calculator into the exam. Sentence 4: Geoffrey was caught using the calculator by his teacher. Sentence 5: Geoffrey was sad to receive a zero on the test. Choices: a. Calculator. b. The Robbery.

a