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: It was a lazy summer day when they set off. Sentence 2: The river was lovely that day. Sentence 3: They had their kayaks in the water and were paddling downstream. Sentence 4: It was a gorgeous day. Sentence 5: They reached the landing and pulled out their kayaks. Choices: a. Paddling. b. Good Reading.

a