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.

[EX Q]: Title: Dino Man. Sentence 1: Bill was curious as a kid about the great dinosaurs. Sentence 2: Bill read every book about dinosaurs that he could find. Sentence 3: Bill went on to study dinosaurs in highschool and college. Sentence 4: Bill went into graduate studies in paleontology and biology. Choices: a. Now Bill is the world's leading authority on dinosaurs! b. For the next game, the boys split up more evenly.
[EX A]: a

[EX Q]: Title: Bookshelf. Sentence 1: Spencer was moving. Sentence 2: He tried to lift the bookshelf. Sentence 3: The bookshelf fell down. Sentence 4: It broke all over. Choices: a. He walked back in because it was cold. b. Spencer bought a new one.
[EX A]: b

[EX Q]: Title: Trade. Sentence 1: They were sold out of medium shirts. Sentence 2: All that was left was larges. Sentence 3: My friend wanted to trade with me. Sentence 4: She is smaller than me. Choices: a. My friend came to pick me up. b. So I traded with her.
[EX A]:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
b

