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: Lyn found a crying child in the park. Sentence 2: The little girl was hurt and yet was unable to speak. Sentence 3: Lyn searched the girl and found an ID card. Sentence 4: The little girl was autistic but her address was on the card. Sentence 5: Lyn reunited the child with her mother. Choices: a. Saved. b. Babysitting.
a