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: A plane had too much cargo. Sentence 2: It began to sink in the sky. Sentence 3: They signaled for aid. Sentence 4: The ground control told them to throw off packages. Sentence 5: They threw off a lot. Choices: a. Jettison. b. Clarice's Club.

a