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: Nina hated walking to school a mile each way. Sentence 2: Then her mom moved, and her walk tripled! Sentence 3: Now it was 3 miles there and 3 miles back! Sentence 4: Nina fondly remembered her old route. Sentence 5: She wished she had only a mile to walk! Choices: a. Miles. b. ESPN Confusion.

a