Task: Text Completion
Input (English): Sentence1: Sam hopped into his mail truck and drove off. Sentence2: He was trying to do his route fast to get home early today. Sentence3: He drove so fast he didn't see a pothole in the road. Sentence4: The truck bounced hard when he hit the pothole. 
 (A) Sam was happy that he disabled his mail truck. (B) Sam's head hit the steering wheel.
Output (English): A