What point does the professor make when she mentions that the Dorset made houses out of snow? A. The types of houses that the Dorset made depended upon the material that was available to them. B. The Dorset learned to make snow houses from other ancient people. C. Dorset technology was not as advanced as anthropologists originally thought. D. The Dorset's use of permanent shelters made it difficult for them to follow migratory animals.