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: Gary heard about the new carnival rides coming to town. Sentence 2: Gary decided it would be fun to check the rides out. Sentence 3: As Gary arrived, he noticed a huge roller coaster. Sentence 4: Gary purchased a ticket for the roller coaster and waited in line. Sentence 5: Gary was so excited to be riding the roller coaster at the carnival. Choices: a. Carnival rides. b. Cat in a Tree.

a