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: Vanessa's dog was sick. Sentence 2: She took him to the vet. Sentence 3: The vet said he needed some medicine. Sentence 4: The medication cost $200! Sentence 5: Vanessa grudgingly paid the vet. Choices: a. The Vet. b. Skipping rope.

a