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: Drinking Problem. Sentence 1: Tim had a problem with alcohol. Sentence 2: His family wanted him to do something about it. Sentence 3: They sat hi down and talked about it. Sentence 4: Tim agreed with their assessment. Choices: a. He decided to cut down on drinking. b. Will lost 40 pounds!
Example Output: a

Example Input: Title: A little girl and her kitten.. Sentence 1: A little girl was walking home from school one afternoon. Sentence 2: As the little girl headed home she heard a meow. Sentence 3: The little girl followed the meowing to an abandoned car. Sentence 4: The little girl discovered the source of the meowing was a kitten. Choices: a. The little girl adopted the kitten and they lived happily ever after. b. When she finally got back home her legs were throbbing.
Example Output: a

Example Input: Title: Focus. Sentence 1: I had a task to do. Sentence 2: It was very complicated. Sentence 3: I could not focus on the task. Sentence 4: I drank a cup of coffee to help. Choices: a. I was able to work on the task. b. Within a few minutes she had caught her very first fish!
Example Output:
a