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: My nephew's first game. Sentence 1: My little nephew had his first tee-ball game last night. Sentence 2: When it was his turn to bat, he walked out to the plate. Sentence 3: He swung the bat hard, but he missed the first and second times. Sentence 4: On his third swing, he hit the ball dead on. Choices: a. Eric and his friends camped at a nearby campsite later that night. b. We all cheered as he ran as fast as his little legs could carry him.
a