Given the task definition and input, reply with output. 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'.

Sentence 1: One day several friends and I decided to have a picnic. Sentence 2: We went out to the store and bought all the supplies. Sentence 3: We then hiked through a trail to look for a lake to sit near. Sentence 4: We couldn't find the lake but what we found was much better. Sentence 5: We finally sat under huge beautiful tree and all had a wonderful time! Choices: a. Dead Fish. b. Grove.
b