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'.

Sentence 1: She went to a dog race for the first time. Sentence 2: She had never bet on races before. Sentence 3: She was thrilled by the excitement in the air. Sentence 4: She bet 20 dollars on a greyhound. Sentence 5: She lost the money, but had a good time. Choices: a. Hungry. b. Betting.
b