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: The road to recovery was long. Sentence 2: He went an entire week without drinking. Sentence 3: He wanted to cave so badly. Sentence 4: She was firm and refused to buy any. Sentence 5: He was angry but understood. Choices: a. Recovery. b. Lamp.

a