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.
Input: Title: Gun?. Sentence 1: John bought a handgun for home protection. Sentence 2: He kept the gun unloaded, in his bedroom nightstand. Sentence 3: One night, John heard a noise. Sentence 4: In case it was an intruder, John grabbed the gun. Choices: a. It was just his teen son, but John felt comforted by having the gun. b. He was surprised to see her party.
Output:
a