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 does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.

Title: First time flyer. Sentence 1: Maria and her family were at the airport. Sentence 2: Maria was scared to go on plane for the first time. Sentence 3: Her dad assured her that it was safe. Sentence 4: As Maria boarded the plane she meant the captain. Choices: a. Maria was no longer afraid of flying as the captain was very nice. b. Luckily, a muscular man was able to stop him and take away the axe.
b