You will be given a definition of a task first, then some input of the task.
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: Watch out for holes.. Sentence 1: Scott enjoyed playing softball multiple times a week. Sentence 2: During his last game of the week he tripped in a gopher hole. Sentence 3: When he hit the ground he heard a loud pop and had a lot of pain. Sentence 4: His foot and ankle swelled almost instantly so he went to the doctor. Choices: a. The doctor determined it was a broken ankle and he could not play. b. Eventually he became an astronaut.
Output:
a