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: Mark's computer got a virus. Sentence 2: He went to the store to find a new laptop. Sentence 3: He bought the most expensive model they had. Sentence 4: He brought it home and set it up. Sentence 5: The new machine was amazing! Choices: a. The Laptop. b. The Burger.

a