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 school was having a science fair. Sentence 2: Mark entered his volcano into the fair. Sentence 3: Mark's friend, Shane, entered a bigger and better volcano. Sentence 4: Shane won first prize. Sentence 5: Mark vowed to work harder to win the prize next year. Choices: a. Basketball Game. b. The Science Project.

b