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: Sara was collecting shells on a Florida beach. Sentence 2: Then she found a strange, lovely one. Sentence 3: It was round with five points. Sentence 4: A local told her it was called a sand dollar. Sentence 5: Sara lovingly added it to her collection. Choices: a. Grand Theft Auto. b. Sand Dollar.
b