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: Nera got fitting in a dress for a friend's wedding. Sentence 2: Nera got really sick several weeks before the wedding. Sentence 3: She couldn't eat much of anything. Sentence 4: Nera lost a lot of weight. Sentence 5: The dress was too loose for the wedding. Choices: a. The Dress. b. Miracle.
a