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: Kia was tasked with taking her younger brothers to a movie. Sentence 2: She complained, thinking she'd be bored. Sentence 3: But when the movie started, she was surprised. Sentence 4: It was actually very, very funny! Sentence 5: Kia ended up enjoying herself immensely! Choices: a. Gestational Diabetes. b. Movie Surprise.

b