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'.

Example Input: Sentence 1: Charles spent three years in college after high school. Sentence 2: Because he flunked out, it was time to go home. Sentence 3: He worked in a store for two years. Sentence 4: Then his mother kicked him out and called him poor. Sentence 5: He went to Las Vegas and won enough money for the apartment next door. Choices: a. The College Dropout. b. Do anything to impress you, babe.
Example Output: a

Example Input: Sentence 1: Kia signed up for guitar lessons. Sentence 2: At first she was terrible. Sentence 3: She couldn't strum any chords properly! Sentence 4: But after a few weeks she improved. Sentence 5: Soon Kia was an expert guitarist. Choices: a. The crash. b. Strum.
Example Output: b

Example Input: Sentence 1: Sam and Christine wanted to take their children to Disney World. Sentence 2: The packed up their car and drove down to Orlando, Florida. Sentence 3: They checked into a fabulous hotel. Sentence 4: They spent a week enjoying all of the Disney theme parks. Sentence 5: The family had a wonderful time at Disney World! Choices: a. Disney World. b. Boating Accident.
Example Output:
a