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.

Example Input: Title: Star Gazing. Sentence 1: On a clear summer night Traci likes to look at the stars. Sentence 2: Since the time she was a little girl she has been mesmerized by them. Sentence 3: Her favorite constellation is the Big Dipper. Sentence 4: She also loves the Aurora Borealis. Choices: a. The forum got taken down. b. If it's a clear night you know just where she can be found!
Example Output: b

Example Input: Title: Going to Concert.. Sentence 1: Neil loves watching rock concerts. Sentence 2: He went to a show with his girlfriend. Sentence 3: They give their tickets to security. Sentence 4: They jump up and down when the music plays. Choices: a. Neil drives his girlfriend home when the concert is done. b. I mixed it in and rolled it around.
Example Output: a

Example Input: Title: D Hall. Sentence 1: It was the first time she was given detention. Sentence 2: She walked into the room that was called D Hall. Sentence 3: She sat down at a desk. Sentence 4: She started her homework early. Choices: a. The next day, she received a green pen from her grandpa. b. She kind of felt good about doing her homework for a change.
Example Output:
b