{"answers": "A", "options": ["f : really ? if swimming can boost my heart rate , i think i 'll try it .", "f : although swimming can boost my heart rate , you said it is a pretty hard way , so i do n't think i will swim .", "f : well , if jogging can make me younger , i think it is the best way for me to start my exercise .", "f : alright , though brisk walking can help make more friends , it is pretty tough , i do n't think it will suit me ."], "article": "f : i know you pay a lot of attention to exercise in your daily life . could you tell me something about exercise ? m : ok. i 'm just interested in exercise . the importance of exercise is nothing new . thomas jefferson once wrote that to be successful and academic studies , a person should give about 2 hours everyday to exercise . f : 2 hours every day ? i ca n't do that . m : most experts today do not demand 2 hours of daily exercise . they recommend that people get 60 minutes of moderate to vigorous physical activity most days of the week . f : how does exercise do good to our health ? m : for example , brisk walking , jogging and swimming are easy ways to boost your heart rate and promote your health . exercise can also help to lower blood pressure and counter stress . for women , exercise that makes the body and bones bear weight , like walking or running may reduce the risk of osteoporosis later in life .", "id": "train_4092"}