What Livelihood Is "The Only Feasible Way of Life on the Tibetan

Multiple Choice

What livelihood is "the only feasible way of life on the Tibetan plateau," according to the authors of your textbook?

A) nomadic pastoralism based on the yak
B) plantation agriculture based on tea
C) subsistence agriculture based on tubers
D) sedentary agriculture based on a variety of crops
E) transhumance based on sheep