The correct answer is D) Eastern hills.
Pastoralism is the practice of raising livestock, especially in areas where there is little arable land. It is a traditional way of life for many people in the world, and it is still practiced in many parts of Telangana. The eastern hills of Telangana are a good place for pastoralism because they have a lot of open space and good grazing land. The climate is also suitable for raising livestock, and there is a good supply of water.
The coastal areas of Telangana are not suitable for pastoralism because they are too densely populated and there is not enough open space. The northern plains are also not suitable for pastoralism because they are too dry and there is not enough grazing land. The Deccan plateau is a good place for pastoralism, but it is not as good as the eastern hills because it is more densely populated and there is less open space.
In conclusion, the eastern hills of Telangana are the best place for pastoralism in Telangana.