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: The Bat. Sentence 1: One evening at dusk James was outside on the deck with his family. Sentence 2: He looked to them and said he would show them a trick. Sentence 3: James balled up a pair of white socks. Sentence 4: He then threw them into the air and a small black bat swooped by. Choices: a. She had to drive all the way to the market to finally finish her cake. b. The whole family gasped and James smiled.
Example Output: b

Example Input: Title: Bad Joke. Sentence 1: Tom was drunk on Facebook. Sentence 2: He found a rude joke that made him laugh. Sentence 3: He decided it to post it on his wall. Sentence 4: Tom got into a lot of trouble with friends and family. Choices: a. It was a pretty fun experience for him. b. He deleted it and apologized.
Example Output: b

Example Input: Title: Cicada. Sentence 1: I climbed the pool ladder to the top rung. Sentence 2: On the wooden post was a cicada shell. Sentence 3: There was a bright green new cicada struggling to climb out. Sentence 4: I was excited because I'd never seen it before. Choices: a. Sofia was devastated because she had lost it. b. I stood on the ladder and watched.
Example Output:
b