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: Send in the Clowns. Sentence 1: Sitting in a front row seat, Julie expectantly awaited the clowns. Sentence 2: They came tumbling in with their giant shoes and tiny cars. Sentence 3: They made a wobbly clown tower and teetered over towards Julie. Sentence 4: Each clown came somersaulting down to the ground. Choices: a. Julie clapped and clapped at the end of the performance. b. The day was filled with laughs and fun.
a