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: Telescope. Sentence 1: I brought out my old telescope. Sentence 2: I saw a brighter spot in the sky. Sentence 3: I looked in the viewer. Sentence 4: I could make out individual stars. Choices: a. He was much less hungry in the morning. b. It is crazy how many there are.
Example Output: b

Example Input: Title: Cat. Sentence 1: My cat and I moved to a new apartment. Sentence 2: I loved my new apartment, but my cat didn't. Sentence 3: He would often hide in a closet or under the bed to show his anger. Sentence 4: One day, I called for him but couldn't find him anywhere. Choices: a. I think he ran away, because I never saw him again. b. Claire brought the trash out.
Example Output: a

Example Input: Title: Leave a note. Sentence 1: Fred would often leave his house without a note. Sentence 2: His children often felt upset about it. Sentence 3: They asked him why he did that. Sentence 4: He was not sure. Choices: a. Fred then decided to always leave a note. b. I won gold.
Example Output:
a