Instructions: In this task, you're given the title of a five-sentence story, the first four sentences, and two options for the fifth sentence as a and b. Your job is to pick the sentence option that seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.
Input: Title: Sledding. Sentence 1: Lois stood at the top of a steep, snowy hill with his sled. Sentence 2: He had never gone sledding before and was nervous. Sentence 3: The hill seemed to look taller every minute he was up there. Sentence 4: After taking five deep breaths, he hopped on his sled and went down. Choices: a. At the bottom, Lois smiled and said it was the most fun he ever had. b. It was chocolate covered bugs.
Output:
a