Given the task definition and input, reply with output. 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: Dancing Lessons. Sentence 1: Dan was getting married in two months. Sentence 2: While everything was going great, Dan had a problem. Sentence 3: Dan did not know how to dance with his new wife. Sentence 4: Dan decided he would sign up for dancing lessons. Choices: a. Dan noticed his daughter had photo bombed the second tree photo. b. After his first lesson, Dan was less anxious about his wedding dance.
b