Given the task definition and input, reply with output. 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.

Title: The Fire. Sentence 1: Howard was working in the office when the fire alarm went off. Sentence 2: He could smell smoke. Sentence 3: The whole building was evacuated and waited outside. Sentence 4: It turned out someone left some bread in the toaster oven. Choices: a. Ken was proud of what he was accomplishing. b. It was a minor fire and was easily remedied.
b