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: Monica was participating in a tennis competition. Sentence 2: She was a point away from winning. Sentence 3: She hit the ball as hard as she could. Sentence 4: Suddenly, a dog ran out and caught the ball in his mouth and ran off. Sentence 5: Monica was left in shock, and served again into the net. Choices: a. The Dog. b. Ring Toss.

a