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: Leo's blood test showed a very high level of liver enzymes. Sentence 2: The level indicated potential cirrhosis, or even cancer. Sentence 3: Leo was terrified when he went in for his biopsy. Sentence 4: Luckily, he had a kind nurse who was waiting for him after surgery. Sentence 5: Right after he woke up, she smiled and said his liver was healthy! Choices: a. Hostess Gift. b. Liver Biopsy.

b