Task: Question Answering
Input (English): Passage: Once it was time to leave for school , I called to my son to get into the car . We both walked out of the house through thr front door once I made sure I had my car keys and wallet . I locked the front door behind me . I got into the driver 's seat of the car , closed the car door , and put on my seat belt . I started the car ignition and backed the car out of the driveway . I then drove the car to the school . There were cars in fron tof us , so we waited for our turn to pull up to the dropoff area . Once it was our turn , I unlocked the car door so the teacher on duty could open it for my son . My son got out of the car and proceeded to his classroom . Question: Who got into the passenger seat? Option1: Their son Option2: the daughter
Output (English): Their son