Instructions: 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: Fran was confused. Sentence 2: She wanted to get from NYC to Washington DC. Sentence 3: She wasn't sure what train she should take. Sentence 4: She asked the conductor and he helped her. Sentence 5: Fran was thankful for nice people! Choices: a. Poison Ivy Spray. b. The Train.
Output:
b