Instructions: In this task, you're given the title and three arbitrary sentences out of a five-sentence story. You are also given three additional sentence options, a, b, and c, that may or may not belong to the story. Your job is to pick the two options that seamlessly connect with the rest of the story; note that the selected choices may fit into the story at any point. Indicate your selected choices in order, i.e., as 'ab'/'bc'/'ac' and not as 'ba'/'ca'/'cb'. If options are equally plausible, pick the ones that make more sense.
Input: Title: Lancaster and Burt were cruising in their dad's '71 camaro. Two guys in newer model car challenged them to a race. Lancaster was ahead and winning when hit a rock and tree stump. Choices: a. A towing company had to use a crane to remove the car. b. Since they were speeding, the car went airborne and landed on a roof. c. Joe disconnected the feed that night.
Output:
ab