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: Tom ordered some items online. Sentence 2: He would wait for them to arrive. Sentence 3: Every time a delivery truck drove by he would get really excited. Sentence 4: After a while all the letdowns became frustrating. Sentence 5: Tom eventually got the right truck, though. Choices: a. Red Stain. b. Delivery Truck.

b