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: Helpful. Sentence 1: My son went outside to play. Sentence 2: A few hours after he came back in, my neighbor came over. Sentence 3: He said he wanted to tell me how helpful my son was. Sentence 4: He told me how he helped him rake leaves on his lawn. Choices: a. The next moment I turn my head and see a big ball of fluff in my face! b. I went and found my kid and told him how proud I was.
Example Output: b

Example Input: Title: The Never Growing Flowers. Sentence 1: In the spring, Lindsey bought some flowers to hang by her front porch. Sentence 2: She watered them, fertilized them, and kept them in the sun. Sentence 3: Even though she took great care of them, they died four days later. Sentence 4: Lindsey bought new flowers and the same thing happened two more times. Choices: a. She was happy to have Fred ask her. b. Lindsey, frustrated, dumped out the hanging pots and planted no more.
Example Output:
b