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 son is very small. Sentence 2: I put plastic pieces in the wall sockets. Sentence 3: My son tried to get one off. Sentence 4: He could not get it off. Sentence 5: My son was not harmed. Choices: a. New dress. b. Wall socket.

b