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: Ben liked to compete with his dog in Schutzhund tests. Sentence 2: He had trained Nero, his Rottweiler, for over a year. Sentence 3: Today was Nero's first test. Sentence 4: Nero was startled at first but then enjoyed every minute of the test. Sentence 5: Nero came in second place, pleasing Ben enormously. Choices: a. The Schutzhund Test. b. The Pet Bug.

a