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: Tunnel Vision. Sentence 1: Tom was in a hard cage fight. Sentence 2: He landed a punch early in the fight. Sentence 3: Tom wanted to get the knock out. Sentence 4: He got tunnel vision and didn't go for anything else. Choices: a. Then he said, She's so fat she should come with a warning signal. b. He wound up losing a decision.
A:
b