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: Kayaking. Sentence 1: Joan and her family kayaked in a lake. Sentence 2: It was a very bad idea. Sentence 3: There weren't many waves and the water was so still. Sentence 4: They came back to shore early. Choices: a. She made the day better by making burgers on the shore. b. Will decided perhaps he was tough enough, never returning to that gym.
b