{"answers": "A", "options": ["f : it depends on the weather and transportation , but usually within five days .", "f : ems is next day service everywhere , so your letter can arrive beijing tomorrow .", "f : it will take two days to new york , and the rate is $ 7.65 for up to 3 pounds now .", "f : it will take only one day to london . ems is the next day service everywhere ."], "article": "m : i 'd like this letter to go by ems . what 's the rate ? f : $ 7.65 for up to 2 pounds . m : thank you . i hear the ems is the next day service . is that true ? f : well , it 's true within america , but now you are in beijing . the letter has to go through customs and get registered there . anyway , it 's faster and safer than ordinary mail . m : then how long will it take to get to new york ?", "id": "train_3286"}