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'.
Example: Sentence 1: Marcus needed clothing for a business casual event. Sentence 2: All of his clothes were either too formal or too casual. Sentence 3: He decided to buy a pair of khakis. Sentence 4: The pair he bought fit him perfectly. Sentence 5: Marcus was happy to have the right clothes for the event. Choices: a. Marcus Buys Khakis. b. Marcus Works.
Example solution: a
Example explanation: Marcus's reasons for buying khakis is established, followed by his purchase of them and reaction.

Problem: Sentence 1: Bert Johnson was miles away from home when it started snowing. Sentence 2: He sighed, knowing he'd have to stop his truck for the night. Sentence 3: That's when he received a call from his wife, saying his son was sick. Sentence 4: Bert knew there was nothing that could stop him from continuing. Sentence 5: Bert made it home in record time. Choices: a. Nature Photos. b. Albert.
Solution: b