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 car accident was a bad one. Sentence 2: Dan ended up with a severe head injury. Sentence 3: He was in a coma for several weeks. Sentence 4: When he opened his eyes, he did not know his family. Sentence 5: Dan had lost his memory due to the head injury. Choices: a. Rolling Papers. b. Amnesia.

b