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.

Ex Input:
Title: New Mall. Sentence 1: We went to see the new mall. Sentence 2: It was huge, bigger than expected.aquarium. Sentence 3: The floors were made of glimmering marble. Sentence 4: There was a huge round marble ball spinning on water. Choices: a. We went through every store that day. b. Sam agreed when the jury found the defendant guilty.

Ex Output:
a

Ex Input:
Title: Counseling or Divorce. Sentence 1: Heather and her husband have been together for twenty years. Sentence 2: He has cheated on her with another woman at least three times. Sentence 3: Finally Heather is started to think that her marriage isn't working. Sentence 4: She thinks long about the various choices that she has to make. Choices: a. Ella wished she'd agreed to go to church sooner! b. Heather decides that maybe they need to try counseling services.

Ex Output:
b

Ex Input:
Title: Deadly consequences. Sentence 1: Joanne owned 10 dogs. Sentence 2: She loved them so much and spoiled them. Sentence 3: One day she brought home new snacks she bought at the store. Sentence 4: She fed them to her dogs. Choices: a. The bites were so strong that it knocked the small plant over! b. Unknowingly, the treats were poisoned and all the dogs died.

Ex Output:
b