Definition: 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: Shot Down. Sentence 1: Tim was a fighter pilot. Sentence 2: He was on his last mission. Sentence 3: Toward the end he got shot down. Sentence 4: Tim had to evacuate the plane and crash land. Choices: a. The two talked and became fast friends. b. He was badly injured but survived.
Output:
b