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: Hank got marooned on a deserted island. Sentence 2: He found food. Sentence 3: He built shelter. Sentence 4: He drew SOS in the sand. Sentence 5: A rescue crew found him! Choices: a. Rescue. b. Wreck.

a