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 grandmother sent me a coupon. Sentence 2: It was for a free smoothie. Sentence 3: I went to McDonald's. Sentence 4: I went through the drive through. Sentence 5: I was so excited! Choices: a. Whales. b. Free Smoothie.

b