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: New Skateboard park. Sentence 1: Barry was an avid skateboarder. Sentence 2: However, there was never anywhere for him to skateboard freely. Sentence 3: As Barry was walking, he say a sign for a new skateboard park. Sentence 4: Barry was pleased to see the park would be finished by December. Choices: a. Filled with such awe, they both forgot how cold the water was. b. Barry was pleased that he would be able to skateboard freely.
a