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.

Title: Stage Shuffle. Sentence 1: Ellen worked in the theater as a stagehand. Sentence 2: She was responsible for moving props around between scenes. Sentence 3: One time, Ellen tripped and fell onto the scene after setting it up. Sentence 4: To act natural, Ellen shouted out a joke in line with the show. Choices: a. Heidi was surprised, and realized that she needed to be nicer at work. b. The crowd laughed and clapped as Ellen ran to her place backstage.
b