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: My roommate and I are friends with an older woman named Olga. Sentence 2: She is kind albeit a bit controlling and we help her sometimes. Sentence 3: One day her daughter came to visit from another country. Sentence 4: With her daughter around, Olga became something of a monster. Sentence 5: When she left everything went back to normal but my views were changed. Choices: a. Fairy Tale. b. The unknown Olga.

b