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 had a big cookout. Sentence 2: He invited several family and friends. Sentence 3: Unfortunately he used some bad meat. Sentence 4: Several people got sick. Sentence 5: Tom had given them food poisoning. Choices: a. Old Well. b. Food Poisoning.

b