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: New pant. Sentence 1: Fred needed some new pants. Sentence 2: His current ones ripped. Sentence 3: So he went to the mall. Sentence 4: When he got there he saw there was a sale. Choices: a. So he got pants for half off. b. She broke up with him because he had done this before.
Example Output: a

Example Input: Title: New friends. Sentence 1: Leslie recently got a rescue dog. Sentence 2: The dog was scared of other dogs because it had been bitten once. Sentence 3: Leslie wanted to make her dog happy by finding it a playmate. Sentence 4: After a lot of trial and error the dog finally warmed up to a puppy. Choices: a. The two dogs have played together daily ever since. b. Will has never done such a dumb thing since.
Example Output: a

Example Input: Title: The Fight. Sentence 1: We had a huge fight this morning over the coffee. Sentence 2: Every time I make it, Mack says I'm doing it wrong. Sentence 3: He tells me I cook the water too long once the coffee drips in. Sentence 4: I think it tastes better with the slightly roasted flavor. Choices: a. The dye will last about 6 weeks. b. He refused to drink any of it, so I ended up drinking the entire pot.
Example Output:
b