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: Carl ordered a pizza. Sentence 2: It didn't arrive in over two hours. Sentence 3: When it finally got there it was cold. Sentence 4: Carl called to complain. Sentence 5: He was given a replacement in proper time. Choices: a. Cold Pizza. b. Runaway Dog.

a