Detailed Instructions: 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.
Q: Title: Robot Wars. Sentence 1: Kilo was an expert builder of battle robots and their weapons. Sentence 2: He was the top three fighter in the robot battle leagues. Sentence 3: He was due to compete for the spot of number one this week. Sentence 4: He build a special robot just in time for the competition. Choices: a. The convicts had their way with their home and tore it to pieces. b. He placed first and took the award home thanks to his genius robots.
A:
b