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 the Johnson family went to the aquarium. Sentence 2: First they saw the adorable penguins. Sentence 3: Then they saw some tropical fish. Sentence 4: Finally they went to the dolphin show. Sentence 5: They had a super fun day. Choices: a. The Aquarium. b. The app.

a