{"answers": "A", "options": ["m : yeah . living things in the forest are interesting . i am fascinated by them .", "m : yes . you have visited the city this time . next time you should visit the forest .", "m : yes . living things in the forest are interesting , but the bird kinds here are limited .", "m : yeah . sorry that i only know a little about the forest . next time you should ask a doctor ."], "article": "f : so , here we are . deep in the forest . with me is doctor mike green . doctor green can you tell us a little about this wonderful place ? m : yes , of course , as you can see , the forest is full of trees , birds and insects . f : yes , there are some strange and beautiful plants everywhere . how many different kinds of plants are there ? m : well , in just one square kilometer of the forest , you can find about 1500 different kinds of plants , and many of those 1500 kinds of plants do n't grow in any other place in the world . f : and there are hundreds of trees too , are n't there ? m : yes , there are . in fact , there are about 750 different kinds of trees in one square kilometer . f : really ? now , i 'm sure the people listening to this program are interested in the living things in the forest . m : well , the forest is full of living things . for example , you can find about 400 different kinds of birds in just one square kilometer . f : really ? how interesting !", "id": "train_3723"}