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: Kyle stood nervously in front of the 140 students. Sentence 2: He was introduced by the professor in charge of the class. Sentence 3: He wished he had brought water because his mouth felt full of cotton. Sentence 4: It was time, and he opened his mouth, hoping words would come out. Sentence 5: They did, and the professor praised him for how well his lecture went. Choices: a. Teaching Class. b. Winning the Lottery.

a