{"answers": "A", "options": ["m : that is pretty smart to face their homes toward the south to use the sun for heat .", "m : only a few of them lived together in a large house to keep warm . most people did live in caves .", "m : that is pretty smart to keep fires burning all the time . but they did live in caves .", "m : that is pretty smart to face their homes toward the south to use the rain and cloud to keep damp ."], "article": "m : hi , jane . what 's so interesting ? f : what ? oh , hi , tom . i am reading an article on the societies of the ice age . m : the ice age . there were n't many societies then , just a bunch of cave people . f : that 's what people used to think . but a new exhibit at the american museum on natural history shows that the ice age people were surprisingly advanced . m : oh , really ? in what way ? f : well , the ice age people created language , art and music as we know it . and they did n't live in caves . they built their own shelters . m : what did they build them with ? the odd weather would have killed most of the trees , so they could n't have used wood . f : in some of the warmer places , they did build houses out of wood . m : how did they stay warm ? f : well , it says that in the early ice age , they often faced their homes toward the south to use the sun for heat .", "id": "train_3266"}