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: One day Sabrina went to the botanical garden in her city. Sentence 2: First she walked through the butterfly aviary. Sentence 3: Then she fed the hummingbirds. Sentence 4: Finally she looked at the beautiful flowers. Sentence 5: She had a fun time. Choices: a. BABY SISTER. b. Botanical Garden.

b