{"answers": "A", "options": ["f : sounds useful . may i join you next time to improve balance by jumping rope ?", "f : so jumping rope also helps strengthen lungs . no wonder you never swim .", "f : you mean weight-lifting ca n't help people get stronger , but rope-jumping can .", "f : oh , weight-lifting , swimming and rope-jumping all help you improve balance ."], "article": "f : where are you going ? m : i 'm going to the gym to lift weights . want to come ? f : no , thanks . i 'm going to prepare for my chemistry midterm . do you usually just lift weights ? m : no . i lift to get stronger . then i swim to help my heart and lungs and i jump rope to improve my balance .", "id": "train_3391"}