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: The baby was very small. Sentence 2: He looked up at me with bright blue eyes. Sentence 3: He kicked his little feet happily. Sentence 4: I couldn't help but pick him up. Sentence 5: He grinned from ear to ear. Choices: a. The Slide. b. Baby.

b