What Is Transhumance

What is transhumance?

A) the movement of humans from transition zones of agriculture to more inhabitable lowlands
B) agriculture that relies on evapotranspiration
C) the movement of livestock from urban regions to rural areas where more grass is available for animal consumption
D) agriculture in dry areas, made possible by irrigation
E) seasonal movement of livestock to cooler, greener high-country pastures in the summer and returning them to lowland valleys during the winter