Given the task definition and input, reply with output. 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'.

Sentence 1: Kelli was getting ready for work. Sentence 2: She washed her face with a special astringent. Sentence 3: Later she realized her face was sticky. Sentence 4: When she licked her lips, it tasted minty. Sentence 5: Kelli realized she washed her face with mouthwash. Choices: a. A Facial. b. The Love Letter.
a