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: Last minute shopping.. Sentence 1: Linda had been waiting all year for her summer vacation. Sentence 2: She had already purchased her plane ticket. Sentence 3: She was going to stay at a beachfront resort. Sentence 4: The day before her trip she packed her bag. Choices: a. She was so annoyed! b. She realized she needed to go out and buy a bathing suit.
Example Output: b

Example Input: Title: The Dinosaur. Sentence 1: Frank loved science toys. Sentence 2: His dinosaur figures were his favorite. Sentence 3: He would make elaborate stories with them. Sentence 4: He played with them for hours until his mom took them away. Choices: a. Josh had a concussion. b. He went to bed right away so he could wake up and play more.
Example Output: b

Example Input: Title: Late Bus. Sentence 1: Jim needed to get to work. Sentence 2: The bus he was taking was running late. Sentence 3: Jim got to work late. Sentence 4: He tried to explain what happened to his boss. Choices: a. She came home, and made herself a single cup of coffee. b. He was still written up for it, though.
Example Output:
b