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.

Input: Consider 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.

Output: b

Input: Consider Input: Title: Pizza. Sentence 1: Mark was very tired. Sentence 2: He hard worked really hard and was relaxing on the couch. Sentence 3: He didn't feel like getting up so he called in for a pizza. Sentence 4: The delivery guy showed up and Mark payed. Choices: a. The girl loved the new song, and they started dating. b. The pizza was amazing.

Output: b

Input: Consider Input: Title: New computer unveiling. Sentence 1: Susie wanted a new computer. Sentence 2: There was one company that she liked best. Sentence 3: She saw they were having a new machine. Sentence 4: So she jumped for joy. Choices: a. Susie then went out to go buy it. b. The dog next door had gotten her too excited in all the frenzy.
Output: a