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: Anna had rheumatoid arthritis and was in pain frequently. Sentence 2: Finally her doctor put her on a special arthritis medication. Sentence 3: After a few weeks, Anna noticed an improvement. Sentence 4: In a couple of months her pain was all but gone. Sentence 5: Anna was so grateful for the medicine! Choices: a. Arthritis. b. Language.

a